On 25/04/2024 14:42, Suzuki K Poulose wrote:
On 15/04/2024 04:13, kernel test robot wrote:Hi Steven, kernel test robot noticed the following build errors: [auto build test ERROR on arm64/for-next/core][also build test ERROR on kvmarm/next efi/next tip/irq/core linus/master v6.9-rc3 next-20240412][cannot apply to arnd-asm-generic/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information]url: https://github.com/intel-lab-lkp/linux/commits/Steven-Price/arm64-rsi-Add-RSI-definitions/20240412-164852 base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core patch link: https://lore.kernel.org/r/20240412084213.1733764-10-steven.price%40arm.compatch subject: [PATCH v2 09/14] arm64: Enable memory encrypt for Realmsconfig: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20240415/202404151003.vkNApJiS-lkp@xxxxxxxxx/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 8b3b4a92adee40483c27f26c478a384cd69c6f05) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240415/202404151003.vkNApJiS-lkp@xxxxxxxxx/reproduce)If you fix the issue in a separate patch/commit (i.e. not just a new version ofthe same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx>| Closes: https://lore.kernel.org/oe-kbuild-all/202404151003.vkNApJiS-lkp@xxxxxxxxx/All errors (new ones prefixed by >>): In file included from drivers/hv/hv.c:13: In file included from include/linux/mm.h:2208:include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 509 | item]; | ~~~~include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 516 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"| ~~~~~~~~~~~ ^ ~~~include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 528 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 537 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~132 | ret = set_memory_decrypted((unsigned long)hv_cpu->post_msg_page, 1);drivers/hv/hv.c:132:10: error: call to undeclared function 'set_memory_decrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]| ^drivers/hv/hv.c:168:10: error: call to undeclared function 'set_memory_decrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 168 | ret = set_memory_decrypted((unsigned long)| ^218 | ret = set_memory_encrypted((unsigned long)drivers/hv/hv.c:218:11: error: call to undeclared function 'set_memory_encrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]| ^drivers/hv/hv.c:230:11: error: call to undeclared function 'set_memory_encrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 230 | ret = set_memory_encrypted((unsigned long)| ^drivers/hv/hv.c:239:11: error: call to undeclared function 'set_memory_encrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 239 | ret = set_memory_encrypted((unsigned long)| ^ 5 warnings and 5 errors generated. -- In file included from drivers/hv/connection.c:16: In file included from include/linux/mm.h:2208:include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 509 | item]; | ~~~~include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 516 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"| ~~~~~~~~~~~ ^ ~~~include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 528 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 537 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~drivers/hv/connection.c:236:8: error: call to undeclared function 'set_memory_decrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]236 | ret = set_memory_decrypted((unsigned long) | ^340 | set_memory_encrypted((unsigned long)vmbus_connection.monitor_pages[0], 1);drivers/hv/connection.c:340:2: error: call to undeclared function 'set_memory_encrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]| ^ 5 warnings and 2 errors generated. -- In file included from drivers/hv/channel.c:14: In file included from include/linux/mm.h:2208:include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 509 | item]; | ~~~~include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 516 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"| ~~~~~~~~~~~ ^ ~~~include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 528 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 537 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~drivers/hv/channel.c:442:8: error: call to undeclared function 'set_memory_decrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]442 | ret = set_memory_decrypted((unsigned long)kbuffer, | ^drivers/hv/channel.c:531:3: error: call to undeclared function 'set_memory_encrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]531 | set_memory_encrypted((unsigned long)kbuffer, | ^drivers/hv/channel.c:848:8: error: call to undeclared function 'set_memory_encrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 848 | ret = set_memory_encrypted((unsigned long)gpadl->buffer,| ^ 5 warnings and 3 errors generated.Thats my mistake. The correct place for declaring set_memory_*crypted() is asm/set_memory.h not asm/mem_encrypt.h.Steven, please could you fold this patch below :diff --git a/arch/arm64/include/asm/mem_encrypt.h b/arch/arm64/include/asm/mem_encrypt.hindex 7381f9585321..e47265cd180a 100644 --- a/arch/arm64/include/asm/mem_encrypt.h +++ b/arch/arm64/include/asm/mem_encrypt.h@@ -14,6 +14,4 @@ static inline bool force_dma_unencrypted(struct device *dev)return is_realm_world(); } -int set_memory_encrypted(unsigned long addr, int numpages); -int set_memory_decrypted(unsigned long addr, int numpages); #endifdiff --git a/arch/arm64/include/asm/set_memory.h b/arch/arm64/include/asm/set_memory.hindex 0f740b781187..9561b90fb43c 100644 --- a/arch/arm64/include/asm/set_memory.h +++ b/arch/arm64/include/asm/set_memory.h @@ -14,4 +14,6 @@ int set_direct_map_invalid_noflush(struct page *page); int set_direct_map_default_noflush(struct page *page); bool kernel_page_present(struct page *page); +int set_memory_encrypted(unsigned long addr, int numpages); +int set_memory_decrypted(unsigned long addr, int numpages);
Emmanuele reports that these need to be exported as well, something like: diff --git a/arch/arm64/mm/pageattr.c b/arch/arm64/mm/pageattr.c index 229b6d9990f5..de3843ce2aea 100644 --- a/arch/arm64/mm/pageattr.c +++ b/arch/arm64/mm/pageattr.c@@ -228,11 +228,13 @@ int set_memory_encrypted(unsigned long addr, int numpages)
{
return __set_memory_encrypted(addr, numpages, true);
}
+EXPORT_SYMBOL_GPL(set_memory_encrypted);
int set_memory_decrypted(unsigned long addr, int numpages)
{
return __set_memory_encrypted(addr, numpages, false);
}
+EXPORT_SYMBOL_GPL(set_memory_decrypted);
#ifdef CONFIG_DEBUG_PAGEALLOC
void __kernel_map_pages(struct page *page, int numpages, int enable
Suzuki
vim +/set_memory_decrypted +132 drivers/hv/hv.c 3e7ee4902fe699 drivers/staging/hv/Hv.c Hank Janssen 2009-07-13 962608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 97 int hv_synic_alloc(void) 2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 98 { 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 99 int cpu, ret = -ENOMEM; f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 100 struct hv_per_cpu_context *hv_cpu;f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 101f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 102 /* f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 103 * First, zero all per-cpu memory areas so hv_synic_free() can f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 104 * detect what memory has been allocated and cleanup properly f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 105 * after any failures. f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 106 */ f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 107 for_each_present_cpu(cpu) { f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 108 hv_cpu = per_cpu_ptr(hv_context.cpu_context, cpu); f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 109 memset(hv_cpu, 0, sizeof(*hv_cpu)); f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 110 }2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 1116396bb221514d2 drivers/hv/hv.c Kees Cook 2018-06-12 112 hv_context.hv_numa_map = kcalloc(nr_node_ids, sizeof(struct cpumask), 597ff72f3de850 drivers/hv/hv.c Jia-Ju Bai 2018-03-04 113 GFP_KERNEL); 9f01ec53458d9e drivers/hv/hv.c K. Y. Srinivasan 2015-08-05 114 if (hv_context.hv_numa_map == NULL) { 9f01ec53458d9e drivers/hv/hv.c K. Y. Srinivasan 2015-08-05 115 pr_err("Unable to allocate NUMA map\n"); 9f01ec53458d9e drivers/hv/hv.c K. Y. Srinivasan 2015-08-05 116 goto err; 9f01ec53458d9e drivers/hv/hv.c K. Y. Srinivasan 2015-08-05 117 }9f01ec53458d9e drivers/hv/hv.c K. Y. Srinivasan 2015-08-05 118421b8f20d3c381 drivers/hv/hv.c Vitaly Kuznetsov 2016-12-07 119 for_each_present_cpu(cpu) { f25a7ece08bdb1 drivers/hv/hv.c Michael Kelley 2018-08-10 120 hv_cpu = per_cpu_ptr(hv_context.cpu_context, cpu);37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 12137cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 122 tasklet_init(&hv_cpu->msg_dpc, 37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 123 vmbus_on_msg_dpc, (unsigned long) hv_cpu);37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 12423378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 125 if (ms_hyperv.paravisor_present && hv_isolation_type_tdx()) { 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 126 hv_cpu->post_msg_page = (void *)get_zeroed_page(GFP_ATOMIC); 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 127 if (hv_cpu->post_msg_page == NULL) { 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 128 pr_err("Unable to allocate post msg page\n"); 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 129 goto err; 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 130 }23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 13123378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 @132 ret = set_memory_decrypted((unsigned long)hv_cpu->post_msg_page, 1); 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 133 if (ret) { 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 134 pr_err("Failed to decrypt post msg page: %d\n", ret); 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 135 /* Just leak the page, as it's unsafe to free the page. */ 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 136 hv_cpu->post_msg_page = NULL; 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 137 goto err; 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 138 }23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 13923378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 140 memset(hv_cpu->post_msg_page, 0, PAGE_SIZE); 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 141 }23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 142faff44069ff538 drivers/hv/hv.c Tianyu Lan 2021-10-25 143 /* faff44069ff538 drivers/hv/hv.c Tianyu Lan 2021-10-25 144 * Synic message and event pages are allocated by paravisor. faff44069ff538 drivers/hv/hv.c Tianyu Lan 2021-10-25 145 * Skip these pages allocation here. faff44069ff538 drivers/hv/hv.c Tianyu Lan 2021-10-25 146 */ d3a9d7e49d1531 drivers/hv/hv.c Dexuan Cui 2023-08-24 147 if (!ms_hyperv.paravisor_present && !hv_root_partition) { 37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 148 hv_cpu->synic_message_page = 2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 149 (void *)get_zeroed_page(GFP_ATOMIC); 37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 150 if (hv_cpu->synic_message_page == NULL) { 2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 151 pr_err("Unable to allocate SYNIC message page\n"); 2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 152 goto err; 2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 153 }2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 154faff44069ff538 drivers/hv/hv.c Tianyu Lan 2021-10-25 155 hv_cpu->synic_event_page = faff44069ff538 drivers/hv/hv.c Tianyu Lan 2021-10-25 156 (void *)get_zeroed_page(GFP_ATOMIC); 37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 157 if (hv_cpu->synic_event_page == NULL) { 2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 158 pr_err("Unable to allocate SYNIC event page\n");68f2f2bc163d44 drivers/hv/hv.c Dexuan Cui 2023-08-24 15968f2f2bc163d44 drivers/hv/hv.c Dexuan Cui 2023-08-24 160 free_page((unsigned long)hv_cpu->synic_message_page); 68f2f2bc163d44 drivers/hv/hv.c Dexuan Cui 2023-08-24 161 hv_cpu->synic_message_page = NULL; 2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 162 goto err; 2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 163 } faff44069ff538 drivers/hv/hv.c Tianyu Lan 2021-10-25 164 }193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 16568f2f2bc163d44 drivers/hv/hv.c Dexuan Cui 2023-08-24 166 if (!ms_hyperv.paravisor_present && e3131f1c81448a drivers/hv/hv.c Dexuan Cui 2023-08-24 167 (hv_isolation_type_snp() || hv_isolation_type_tdx())) { 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 168 ret = set_memory_decrypted((unsigned long) 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 169 hv_cpu->synic_message_page, 1); 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 170 if (ret) { 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 171 pr_err("Failed to decrypt SYNIC msg page: %d\n", ret); 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 172 hv_cpu->synic_message_page = NULL;193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 173193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 174 /* 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 175 * Free the event page here so that hv_synic_free() 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 176 * won't later try to re-encrypt it. 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 177 */ 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 178 free_page((unsigned long)hv_cpu->synic_event_page); 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 179 hv_cpu->synic_event_page = NULL; 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 180 goto err; 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 181 }193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 182193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 183 ret = set_memory_decrypted((unsigned long) 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 184 hv_cpu->synic_event_page, 1); 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 185 if (ret) { 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 186 pr_err("Failed to decrypt SYNIC event page: %d\n", ret); 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 187 hv_cpu->synic_event_page = NULL; 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 188 goto err; 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 189 }193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 190193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 191 memset(hv_cpu->synic_message_page, 0, PAGE_SIZE); 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 192 memset(hv_cpu->synic_event_page, 0, PAGE_SIZE); 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 193 } 2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 194 }2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 1952608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 196 return 0;193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 1972608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 198 err: 572086325ce9a9 drivers/hv/hv.c Michael Kelley 2018-08-02 199 /* 572086325ce9a9 drivers/hv/hv.c Michael Kelley 2018-08-02 200 * Any memory allocations that succeeded will be freed when 572086325ce9a9 drivers/hv/hv.c Michael Kelley 2018-08-02 201 * the caller cleans up by calling hv_synic_free() 572086325ce9a9 drivers/hv/hv.c Michael Kelley 2018-08-02 202 */ 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 203 return ret; 2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 204 }2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 205 2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 2062608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 207 void hv_synic_free(void) 2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 208 { 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 209 int cpu, ret;2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 21037cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 211 for_each_present_cpu(cpu) { 37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 212 struct hv_per_cpu_context *hv_cpu 37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 213 = per_cpu_ptr(hv_context.cpu_context, cpu);37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 214193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 215 /* It's better to leak the page if the encryption fails. */ 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 216 if (ms_hyperv.paravisor_present && hv_isolation_type_tdx()) { 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 217 if (hv_cpu->post_msg_page) { 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 @218 ret = set_memory_encrypted((unsigned long) 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 219 hv_cpu->post_msg_page, 1); 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 220 if (ret) { 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 221 pr_err("Failed to encrypt post msg page: %d\n", ret); 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 222 hv_cpu->post_msg_page = NULL; 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 223 } 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 224 } 23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 225 }23378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 22668f2f2bc163d44 drivers/hv/hv.c Dexuan Cui 2023-08-24 227 if (!ms_hyperv.paravisor_present && e3131f1c81448a drivers/hv/hv.c Dexuan Cui 2023-08-24 228 (hv_isolation_type_snp() || hv_isolation_type_tdx())) { 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 229 if (hv_cpu->synic_message_page) { 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 230 ret = set_memory_encrypted((unsigned long) 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 231 hv_cpu->synic_message_page, 1); 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 232 if (ret) { 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 233 pr_err("Failed to encrypt SYNIC msg page: %d\n", ret); 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 234 hv_cpu->synic_message_page = NULL; 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 235 } 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 236 }193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 237193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 238 if (hv_cpu->synic_event_page) { 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 239 ret = set_memory_encrypted((unsigned long) 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 240 hv_cpu->synic_event_page, 1); 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 241 if (ret) { 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 242 pr_err("Failed to encrypt SYNIC event page: %d\n", ret); 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 243 hv_cpu->synic_event_page = NULL; 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 244 } 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 245 } 193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 246 }193061ea0a50c1 drivers/hv/hv.c Tianyu Lan 2023-08-18 24723378295042a4b drivers/hv/hv.c Dexuan Cui 2023-08-24 248 free_page((unsigned long)hv_cpu->post_msg_page); 37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 249 free_page((unsigned long)hv_cpu->synic_event_page); 37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 250 free_page((unsigned long)hv_cpu->synic_message_page); 37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 251 }37cdd991fac810 drivers/hv/hv.c Stephen Hemminger 2017-02-11 2529f01ec53458d9e drivers/hv/hv.c K. Y. Srinivasan 2015-08-05 253 kfree(hv_context.hv_numa_map); 2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 254 }2608fb65310341 drivers/hv/hv.c Jason Wang 2013-06-19 255
