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[Qemu-devel] [PATCH] acpi: strip compiler info in built-in DSDT
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PATCH] acpi: strip compiler info in built-in DSDT |
Date: |
Thu, 14 Nov 2013 14:01:16 +0200 |
IASL stores it's revision in each table header it generates.
That's not nice since guests will see a change each time
they move between hypervisors.
We generally fill our own info for tables,
but we (and seabios) forgot to do this for the built-in DSDT.
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
Probably not important enough for 1.7. Queued for 1.8.
hw/i386/acpi-build.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 486e705..8ae4f26 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -921,10 +921,16 @@ build_mcfg_q35(GArray *table_data, GArray *linker,
AcpiMcfgInfo *info)
static void
build_dsdt(GArray *table_data, GArray *linker, AcpiMiscInfo *misc)
{
- void *dsdt;
+ AcpiTableHeader *dsdt;
+
assert(misc->dsdt_code && misc->dsdt_size);
+
dsdt = acpi_data_push(table_data, misc->dsdt_size);
memcpy(dsdt, misc->dsdt_code, misc->dsdt_size);
+
+ memset(dsdt, 0, sizeof *dsdt);
+ build_header(linker, table_data, dsdt, ACPI_DSDT_SIGNATURE,
+ misc->dsdt_size, 1);
}
/* Build final rsdt table */
--
MST
- [Qemu-devel] [PATCH] acpi: strip compiler info in built-in DSDT,
Michael S. Tsirkin <=