On 5/13/2022 2:34 AM, Isaku Yamahata wrote:
On Thu, May 12, 2022 at 11:17:51AM +0800,
Xiaoyao Li <xiaoyao.li@xxxxxxxxx> wrote:
From: Isaku Yamahata <isaku.yamahata@xxxxxxxxx>
TDVF firmware (CODE and VARS) needs to be added/copied to TD's private
memory via KVM_TDX_INIT_MEM_REGION, as well as TD HOB and TEMP memory.
Signed-off-by: Isaku Yamahata <isaku.yamahata@xxxxxxxxx>
Signed-off-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxx>
---
target/i386/kvm/tdx.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c
index 3e18ace90bf7..567ee12e88f0 100644
--- a/target/i386/kvm/tdx.c
+++ b/target/i386/kvm/tdx.c
@@ -240,6 +240,7 @@ static void tdx_finalize_vm(Notifier *notifier, void *unused)
{
TdxFirmware *tdvf = &tdx_guest->tdvf;
TdxFirmwareEntry *entry;
+ int r;
tdx_init_ram_entries();
@@ -265,6 +266,29 @@ static void tdx_finalize_vm(Notifier *notifier, void *unused)
sizeof(TdxRamEntry), &tdx_ram_entry_compare);
tdvf_hob_create(tdx_guest, tdx_get_hob_entry(tdx_guest));
+
+ for_each_tdx_fw_entry(tdvf, entry) {
+ struct kvm_tdx_init_mem_region mem_region = {
+ .source_addr = (__u64)entry->mem_ptr,
+ .gpa = entry->address,
+ .nr_pages = entry->size / 4096,
+ };
+
+ __u32 metadata = entry->attributes & TDVF_SECTION_ATTRIBUTES_MR_EXTEND ?
+ KVM_TDX_MEASURE_MEMORY_REGION : 0;
Please use flags instead of metadata.
Sure. Will change it.
+ r = tdx_vm_ioctl(KVM_TDX_INIT_MEM_REGION, metadata, &mem_region);
+ if (r < 0) {
+ error_report("KVM_TDX_INIT_MEM_REGION failed %s", strerror(-r));
+ exit(1);
+ }
+
+ if (entry->type == TDVF_SECTION_TYPE_TD_HOB ||
+ entry->type == TDVF_SECTION_TYPE_TEMP_MEM) {
+ qemu_ram_munmap(-1, entry->mem_ptr, entry->size);
+ entry->mem_ptr = NULL;
+ }
+ }
}
static Notifier tdx_machine_done_notify = {
--
2.27.0
