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[aarch64][riscv64][ppc64] Improving DT integration to detect VM

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CyrIng
2025-03-16 12:55:00 +01:00
parent 260d8af2ff
commit 5dba49ee90
6 changed files with 87 additions and 11 deletions
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7
Makefile
View File

@@ -96,6 +96,13 @@ ifneq ($(HWM_CHIPSET),)
ccflags-y += -D HWM_CHIPSET=$(HWM_CHIPSET)
endif
ccflags-y += -D DT_VIRTUAL_BOARD='{ \
"linux,dummy-virt", \
"riscv-virtio", \
"qemu,pseries", \
NULL \
}'
ifneq ($(NO_HEADER),)
LAYOUT += -D NO_HEADER=$(NO_HEADER)
endif

23
aarch64/corefreqk.h
View File

@@ -4,7 +4,22 @@
* Licenses: GPL2
*/
#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 1, 0)
#if defined(CONFIG_OF) && LINUX_VERSION_CODE < KERNEL_VERSION(6, 4, 0)
#define of_cpu_device_node_get(cpu) \
({ \
struct device_node *cpu_node; \
struct device *cpu_dev; \
cpu_dev = get_cpu_device(cpu); \
if (!cpu_dev) { \
cpu_node = of_get_cpu_node(cpu, NULL); \
} else { \
cpu_node = of_node_get(cpu_dev->of_node); \
} \
cpu_node; \
})
#endif
#if defined(CONFIG_OF) && LINUX_VERSION_CODE < KERNEL_VERSION(6, 1, 0)
#define of_device_compatible_match(_device_, _compat_) \
({ \
const struct device_node *device = _device_; \
@@ -164,12 +179,6 @@ ASM_COUNTERx3(x11, x12, x13, x14, ASM_RDTSC, mem_tsc, __VA_ARGS__)
#define VENDOR_VMWARE "VMwawarereVM"
#define VENDOR_HYPERV "Micrt Hvosof"
#define DT_VIRTUAL_BOARD { \
"linux,dummy-virt", \
"qemu,pseries", \
NULL \
}
#define LATCH_NONE 0b000000000000
#define LATCH_TGT_RATIO_UNLOCK 0b000000000001 /* <T> TgtRatioUnlocked */
#define LATCH_CLK_RATIO_UNLOCK 0b000000000010 /* <X> ClkRatioUnlocked */

14
ppc64le/corefreqk.c
View File

@@ -4667,7 +4667,19 @@ static int CoreFreqK_Ignition_Level_Up(INIT_ARG *pArg)
StrCopy(PUBLIC(RO(Proc))->Features.Info.Vendor.ID,
PUBLIC(RO(Proc))->Architecture,
12 + 4);
/* Attempt to detect virtualization from Device Tree */
#ifdef CONFIG_OF
{
const char *virtualBoard[] = DT_VIRTUAL_BOARD;
if (of_device_compatible_match(of_root, virtualBoard) > 0)
{
PUBLIC(RO(Proc))->HypervisorID = HYPERV_KVM;
PUBLIC(RO(Proc))->Features.Info.Hypervisor.CRC = CRC_KVM;
StrCopy(PUBLIC(RO(Proc))->Features.Info.Hypervisor.ID,
VENDOR_KVM, 12 + 4);
}
}
#endif /* CONFIG_OF */
/* Check if the Processor is actually virtualized ? */
#ifdef CONFIG_XEN
if (xen_pv_domain() || xen_hvm_domain())

20
ppc64le/corefreqk.h
View File

@@ -4,7 +4,7 @@
* Licenses: GPL2
*/
#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 4, 0)
#if defined(CONFIG_OF) && LINUX_VERSION_CODE < KERNEL_VERSION(6, 4, 0)
#define of_cpu_device_node_get(cpu) \
({ \
struct device_node *cpu_node; \
@@ -19,6 +19,24 @@
})
#endif
#if defined(CONFIG_OF) && LINUX_VERSION_CODE < KERNEL_VERSION(6, 1, 0)
#define of_device_compatible_match(_device_, _compat_) \
({ \
const struct device_node *device = _device_; \
const char *const *compat = _compat_; \
unsigned int tmp, score = 0; \
\
if (compat != NULL) \
while (*compat) { \
tmp = of_device_is_compatible(device, *compat); \
if (tmp > score) \
score = tmp; \
compat++; \
} \
score; \
})
#endif
#define Atomic_Read_VPMC(_lock, _dest, _src) \
{ \
/* __asm__ volatile \

14
riscv64/corefreqk.c
View File

@@ -4661,7 +4661,19 @@ static int CoreFreqK_Ignition_Level_Up(INIT_ARG *pArg)
StrCopy(PUBLIC(RO(Proc))->Features.Info.Vendor.ID,
PUBLIC(RO(Proc))->Architecture,
12 + 4);
/* Attempt to detect virtualization from Device Tree */
#ifdef CONFIG_OF
{
const char *virtualBoard[] = DT_VIRTUAL_BOARD;
if (of_device_compatible_match(of_root, virtualBoard) > 0)
{
PUBLIC(RO(Proc))->HypervisorID = HYPERV_KVM;
PUBLIC(RO(Proc))->Features.Info.Hypervisor.CRC = CRC_KVM;
StrCopy(PUBLIC(RO(Proc))->Features.Info.Hypervisor.ID,
VENDOR_KVM, 12 + 4);
}
}
#endif /* CONFIG_OF */
/* Check if the Processor is actually virtualized ? */
#ifdef CONFIG_XEN
if (xen_pv_domain() || xen_hvm_domain())

20
riscv64/corefreqk.h
View File

@@ -4,7 +4,7 @@
* Licenses: GPL2
*/
#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 4, 0)
#if defined(CONFIG_OF) && LINUX_VERSION_CODE < KERNEL_VERSION(6, 4, 0)
#define of_cpu_device_node_get(cpu) \
({ \
struct device_node *cpu_node; \
@@ -19,6 +19,24 @@
})
#endif
#if defined(CONFIG_OF) && LINUX_VERSION_CODE < KERNEL_VERSION(6, 1, 0)
#define of_device_compatible_match(_device_, _compat_) \
({ \
const struct device_node *device = _device_; \
const char *const *compat = _compat_; \
unsigned int tmp, score = 0; \
\
if (compat != NULL) \
while (*compat) { \
tmp = of_device_is_compatible(device, *compat); \
if (tmp > score) \
score = tmp; \
compat++; \
} \
score; \
})
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0)
#define sys_reg(op0, op1, crn, crm, op2) ({ \
UNUSED(op0); \