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[Qemu-devel] [PATCH v16] Add pvpanic device driver
From: |
Hu Tao |
Subject: |
[Qemu-devel] [PATCH v16] Add pvpanic device driver |
Date: |
Fri, 29 Mar 2013 16:18:44 +0800 |
pvpanic device is used to notify host(qemu) when guest panic happens.
Signed-off-by: Paolo Bonzini <address@hidden>
Signed-off-by: Hu Tao <address@hidden>
---
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)
+ }
+ }
+ }
}
--
1.8.1.4
- [Qemu-devel] [PATCH v16 0/6] Add pvpanic device to deal with guest panic event, Hu Tao, 2013/03/29
- [Qemu-devel] [PATCH v16 2/6] add a new qevent: QEVENT_GUEST_PANICKED, Hu Tao, 2013/03/29
- [Qemu-devel] [PATCH v16 3/6] introduce a new qom device to deal with panicked event, Hu Tao, 2013/03/29
- [Qemu-devel] [PATCH v16 5/6] pc_piix, pc_q35: export fw_cfg, Hu Tao, 2013/03/29
- [Qemu-devel] [PATCH v16 6/6] pvpanic: pass configurable ioport to seabios, Hu Tao, 2013/03/29
- [Qemu-devel] [PATCH v16 4/6] pvpanic: add document of pvpanic, Hu Tao, 2013/03/29
- [Qemu-devel] [PATCH v16 1/6] add a new runstate: RUN_STATE_GUEST_PANICKED, Hu Tao, 2013/03/29
- [Qemu-devel] [PATCH v16] Add pvpanic device driver,
Hu Tao <=
[Qemu-devel] [PATCH v16] pvpanic: pvpanic device driver, Hu Tao, 2013/03/29