Il 29/03/2013 09:18, Hu Tao ha scritto:
> pvpanic device is used to notify host(qemu) when guest panic happens.
>
> Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
> Signed-off-by: Hu Tao <hu...@cn.fujitsu.com>
> ---
> src/acpi.c | 3 +++
> src/ssdt-misc.dsl | 46 ++++++++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 49 insertions(+)
>
> diff --git a/src/acpi.c b/src/acpi.c
> index bc4d8ea..fe504f0 100644
> --- a/src/acpi.c
> +++ b/src/acpi.c
> @@ -534,6 +534,9 @@ build_ssdt(void)
> ssdt_ptr[acpi_pci64_valid[0]] = 0;
> }
>
> + int pvpanic_port = romfile_loadint("etc/pvpanic-port", 0x0);
> + *(u16 *)(ssdt_ptr + *ssdt_isa_pest) = pvpanic_port;
> +
> ssdt_ptr += sizeof(ssdp_misc_aml);
>
> // build Scope(_SB_) header
> diff --git a/src/ssdt-misc.dsl b/src/ssdt-misc.dsl
> index 679422b..acc850e 100644
> --- a/src/ssdt-misc.dsl
> +++ b/src/ssdt-misc.dsl
> @@ -55,4 +55,50 @@ DefinitionBlock ("ssdt-misc.aml", "SSDT", 0x01, "BXPC",
> "BXSSDTSUSP", 0x1)
> Zero /* reserved */
> })
> }
> +
> + External(\_SB.PCI0, DeviceObj)
> + External(\_SB.PCI0.ISA, DeviceObj)
> +
> + Scope(\_SB.PCI0.ISA) {
> + Device(PEVT) {
> + Name(_HID, "QEMU0001")
> + /* PEST will be patched to be Zero if no such device */
> + ACPI_EXTRACT_NAME_WORD_CONST ssdt_isa_pest
> + Name(PEST, 0xFFFF)
> + OperationRegion(PEOR, SystemIO, PEST, 0x01)
> + Field(PEOR, ByteAcc, NoLock, Preserve) {
> + PEPT, 8,
> + }
> +
> + Method(_STA, 0, NotSerialized) {
> + Store(PEST, Local0)
> + If (LEqual(Local0, Zero)) {
> + Return (0x00)
> + } Else {
> + Return (0x0F)
> + }
> + }
> +
> + Method(RDPT, 0, NotSerialized) {
> + Store(PEPT, Local0)
> + Return (Local0)
> + }
> +
> + Method(WRPT, 1, NotSerialized) {
> + Store(Arg0, PEPT)
> + }
> +
> + Name(_CRS, ResourceTemplate() {
> + IO(Decode16, 0x00, 0x00, 0x01, 0x01, IO)
> + })
> +
> + CreateWordField(_CRS, IO._MIN, IOMN)
> + CreateWordField(_CRS, IO._MAX, IOMX)
> +
> + Method(_INI, 0, NotSerialized) {
> + Store(PEST, IOMN)
> + Store(PEST, IOMX)
> + }
> + }
> + }
> }
>
Reviewed-by: Paolo Bonzini <pbonz...@redhat.com>
