x86/hyper-v: Add synthetic debugger definitions (22ad0026) · Commits · 戴 / test

arch/x86/include/asm/hyperv-tlfs.h

+6 −0

Original line number	Diff line number	Diff line
		@@ -131,6 +131,8 @@
		#define HV_FEATURE_FREQUENCY_MSRS_AVAILABLE BIT(8)
		/* Crash MSR available */
		#define HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE BIT(10)
		/* Support for debug MSRs available */
		#define HV_FEATURE_DEBUG_MSRS_AVAILABLE BIT(11)
		/* stimer Direct Mode is available */
		#define HV_STIMER_DIRECT_MODE_AVAILABLE BIT(19)

		@@ -376,6 +378,9 @@ struct hv_tsc_emulation_status {
		#define HVCALL_SEND_IPI_EX 0x0015
		#define HVCALL_POST_MESSAGE 0x005c
		#define HVCALL_SIGNAL_EVENT 0x005d
		#define HVCALL_POST_DEBUG_DATA 0x0069
		#define HVCALL_RETRIEVE_DEBUG_DATA 0x006a
		#define HVCALL_RESET_DEBUG_SESSION 0x006b
		#define HVCALL_RETARGET_INTERRUPT 0x007e
		#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE 0x00af
		#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST 0x00b0
		@@ -422,6 +427,7 @@ enum HV_GENERIC_SET_FORMAT {
		#define HV_STATUS_INVALID_HYPERCALL_INPUT 3
		#define HV_STATUS_INVALID_ALIGNMENT 4
		#define HV_STATUS_INVALID_PARAMETER 5
		#define HV_STATUS_OPERATION_DENIED 8
		#define HV_STATUS_INSUFFICIENT_MEMORY 11
		#define HV_STATUS_INVALID_PORT_ID 17
		#define HV_STATUS_INVALID_CONNECTION_ID 18

+27 −0

Original line number	Diff line number	Diff line
		@@ -23,6 +23,33 @@

		#include <linux/kvm_host.h>

		/*
		* The #defines related to the synthetic debugger are required by KDNet, but
		* they are not documented in the Hyper-V TLFS because the synthetic debugger
		* functionality has been deprecated and is subject to removal in future
		* versions of Windows.
		*/
		#define HYPERV_CPUID_SYNDBG_VENDOR_AND_MAX_FUNCTIONS 0x40000080
		#define HYPERV_CPUID_SYNDBG_INTERFACE 0x40000081
		#define HYPERV_CPUID_SYNDBG_PLATFORM_CAPABILITIES 0x40000082

		/*
		* Hyper-V synthetic debugger platform capabilities
		* These are HYPERV_CPUID_SYNDBG_PLATFORM_CAPABILITIES.EAX bits.
		*/
		#define HV_X64_SYNDBG_CAP_ALLOW_KERNEL_DEBUGGING BIT(1)

		/* Hyper-V Synthetic debug options MSR */
		#define HV_X64_MSR_SYNDBG_CONTROL 0x400000F1
		#define HV_X64_MSR_SYNDBG_STATUS 0x400000F2
		#define HV_X64_MSR_SYNDBG_SEND_BUFFER 0x400000F3
		#define HV_X64_MSR_SYNDBG_RECV_BUFFER 0x400000F4
		#define HV_X64_MSR_SYNDBG_PENDING_BUFFER 0x400000F5
		#define HV_X64_MSR_SYNDBG_OPTIONS 0x400000FF

		/* Hyper-V HV_X64_MSR_SYNDBG_OPTIONS bits */
		#define HV_X64_SYNDBG_OPTION_USE_HCALLS BIT(2)

		static inline struct kvm_vcpu_hv vcpu_to_hv_vcpu(struct kvm_vcpu vcpu)
		{
		return &vcpu->arch.hyperv;