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[Qemu-devel] [PATCH] acpi-build: dirty memory on RSDP/linker update
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PATCH] acpi-build: dirty memory on RSDP/linker update |
Date: |
Sun, 15 Feb 2015 20:46:16 +0100 |
This is required to make sure they are migrated
correctly.
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
hw/i386/acpi-build.c | 28 +++++++++++++++++++++-------
1 file changed, 21 insertions(+), 7 deletions(-)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 1dfdf35..fd6ef78 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1271,6 +1271,8 @@ struct AcpiBuildState {
uint8_t patched;
PcGuestInfo *guest_info;
void *rsdp;
+ ram_addr_t rsdp_ram;
+ uint32_t rsdp_size;
ram_addr_t linker_ram;
uint32_t linker_size;
} AcpiBuildState;
@@ -1478,13 +1480,22 @@ static void acpi_build_update(void *build_opaque,
uint32_t offset)
memcpy(qemu_get_ram_ptr(build_state->table_ram), tables.table_data->data,
build_state->table_size);
- memcpy(build_state->rsdp, tables.rsdp->data, acpi_data_len(tables.rsdp));
- memcpy(qemu_get_ram_ptr(build_state->linker_ram), tables.linker->data,
- build_state->linker_size);
-
cpu_physical_memory_set_dirty_range_nocode(build_state->table_ram,
build_state->table_size);
+ if (build_state->rsdp) {
+ memcpy(build_state->rsdp, tables.rsdp->data,
acpi_data_len(tables.rsdp));
+ } else {
+ memcpy(qemu_get_ram_ptr(build_state->rsdp_ram), tables.linker->data,
+ build_state->rsdp_size);
+ cpu_physical_memory_set_dirty_range_nocode(build_state->rsdp_ram,
+ build_state->rsdp_size);
+ }
+ memcpy(qemu_get_ram_ptr(build_state->linker_ram), tables.linker->data,
+ build_state->linker_size);
+ cpu_physical_memory_set_dirty_range_nocode(build_state->linker_ram,
+ build_state->linker_size);
+
acpi_build_tables_cleanup(&tables, true);
}
@@ -1564,10 +1575,13 @@ void acpi_setup(PcGuestInfo *guest_info)
acpi_build_update, build_state,
tables.rsdp->data,
acpi_data_len(tables.rsdp));
build_state->rsdp = tables.rsdp->data;
+ build_state->rsdp_ram = (ram_addr_t)-1;
+ build_state->rsdp_size = 0;
} else {
- build_state->rsdp = qemu_get_ram_ptr(
- acpi_add_rom_blob(build_state, tables.rsdp, ACPI_BUILD_RSDP_FILE,
0)
- );
+ build_state->rsdp = NULL;
+ build_state->rsdp_ram = acpi_add_rom_blob(build_state, tables.rsdp,
+ ACPI_BUILD_RSDP_FILE, 0);
+ build_state->rsdp_size = acpi_data_len(tables.rsdp);
}
qemu_register_reset(acpi_build_reset, build_state);
--
MST
- [Qemu-devel] [PATCH] acpi-build: dirty memory on RSDP/linker update,
Michael S. Tsirkin <=