Commit-ID: 687d77a5f7b2aae4ea0507888648823f7c24e974
Gitweb: http://git.kernel.org/tip/687d77a5f7b2aae4ea0507888648823f7c24e974
Author: Ingo Molnar <mingo@xxxxxxxxxx>
AuthorDate: Wed, 1 Mar 2017 08:49:47 +0100
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Wed, 1 Mar 2017 09:02:55 +0100
x86/xen: Update e820 table handling to the new core x86 E820 code
Note that I restructured the Xen E820 logic a bit: instead of trying
to sort the boot parameters, only the kernel's E820 table is sorted.
This is how the x86 code does it and it reduces coupling between
the in-kernel E820 code and the (unchanged) boot parameters.
Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Cc: Juergen Gross <jgross@xxxxxxxx>
Cc: <stefano.stabellini@xxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/x86/xen/enlighten.c | 27 +++++++++++++--------------
1 file changed, 13 insertions(+), 14 deletions(-)
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index ec1d5c4..7824345 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -76,6 +76,7 @@
#include <asm/mwait.h>
#include <asm/pci_x86.h>
#include <asm/cpu.h>
+#include <asm/e820/api.h>
#ifdef CONFIG_ACPI
#include <linux/acpi.h>
@@ -1690,34 +1691,32 @@ static void __init init_pvh_bootparams(void)
memset(&pvh_bootparams, 0, sizeof(pvh_bootparams));
- memmap.nr_entries = ARRAY_SIZE(pvh_bootparams.e820_map);
- set_xen_guest_handle(memmap.buffer, pvh_bootparams.e820_map);
+ memmap.nr_entries = ARRAY_SIZE(pvh_bootparams.e820_table);
+ set_xen_guest_handle(memmap.buffer, pvh_bootparams.e820_table);
rc = HYPERVISOR_memory_op(XENMEM_memory_map, &memmap);
if (rc) {
xen_raw_printk("XENMEM_memory_map failed (%d)\n", rc);
BUG();
}
- if (memmap.nr_entries < E820MAX - 1) {
- pvh_bootparams.e820_map[memmap.nr_entries].addr =
+ if (memmap.nr_entries < E820_MAX_ENTRIES_ZEROPAGE - 1) {
+ pvh_bootparams.e820_table[memmap.nr_entries].addr =
ISA_START_ADDRESS;
- pvh_bootparams.e820_map[memmap.nr_entries].size =
+ pvh_bootparams.e820_table[memmap.nr_entries].size =
ISA_END_ADDRESS - ISA_START_ADDRESS;
- pvh_bootparams.e820_map[memmap.nr_entries].type =
- E820_RESERVED;
+ pvh_bootparams.e820_table[memmap.nr_entries].type =
+ E820_TYPE_RESERVED;
memmap.nr_entries++;
} else
xen_raw_printk("Warning: Can fit ISA range into e820\n");
- sanitize_e820_map(pvh_bootparams.e820_map,
- ARRAY_SIZE(pvh_bootparams.e820_map),
- &memmap.nr_entries);
-
pvh_bootparams.e820_entries = memmap.nr_entries;
for (i = 0; i < pvh_bootparams.e820_entries; i++)
- e820_add_region(pvh_bootparams.e820_map[i].addr,
- pvh_bootparams.e820_map[i].size,
- pvh_bootparams.e820_map[i].type);
+ e820__range_add(pvh_bootparams.e820_table[i].addr,
+ pvh_bootparams.e820_table[i].size,
+ pvh_bootparams.e820_table[i].type);
+
+ e820__update_table(e820_table);
pvh_bootparams.hdr.cmd_line_ptr =
pvh_start_info.cmdline_paddr;
--
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