mirror of
https://github.com/torvalds/linux.git
synced 2026-04-19 23:34:00 -04:00
67730e6c53
Use the kernel's canonical $(ARCH) paths instead of the raw target triple for KVM selftests directories. KVM selftests are quite nearly the only place in the entire kernel that using the target triple for directories, tools/testing/selftests/drivers/s390x being the lone holdout. Using the kernel's preferred nomenclature eliminates the minor, but annoying, friction of having to translate to KVM's selftests directories, e.g. for pattern matching, opening files, running selftests, etc. Opportunsitically delete file comments that reference the full path of the file, as they are obviously prone to becoming stale, and serve no known purpose. Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Acked-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20241128005547.4077116-16-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
97 lines
2.5 KiB
C
97 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Helpers used for SEV guests
|
|
*
|
|
*/
|
|
#ifndef SELFTEST_KVM_SEV_H
|
|
#define SELFTEST_KVM_SEV_H
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
#include "linux/psp-sev.h"
|
|
|
|
#include "kvm_util.h"
|
|
#include "svm_util.h"
|
|
#include "processor.h"
|
|
|
|
enum sev_guest_state {
|
|
SEV_GUEST_STATE_UNINITIALIZED = 0,
|
|
SEV_GUEST_STATE_LAUNCH_UPDATE,
|
|
SEV_GUEST_STATE_LAUNCH_SECRET,
|
|
SEV_GUEST_STATE_RUNNING,
|
|
};
|
|
|
|
#define SEV_POLICY_NO_DBG (1UL << 0)
|
|
#define SEV_POLICY_ES (1UL << 2)
|
|
|
|
#define GHCB_MSR_TERM_REQ 0x100
|
|
|
|
void sev_vm_launch(struct kvm_vm *vm, uint32_t policy);
|
|
void sev_vm_launch_measure(struct kvm_vm *vm, uint8_t *measurement);
|
|
void sev_vm_launch_finish(struct kvm_vm *vm);
|
|
|
|
struct kvm_vm *vm_sev_create_with_one_vcpu(uint32_t type, void *guest_code,
|
|
struct kvm_vcpu **cpu);
|
|
void vm_sev_launch(struct kvm_vm *vm, uint32_t policy, uint8_t *measurement);
|
|
|
|
kvm_static_assert(SEV_RET_SUCCESS == 0);
|
|
|
|
/*
|
|
* The KVM_MEMORY_ENCRYPT_OP uAPI is utter garbage and takes an "unsigned long"
|
|
* instead of a proper struct. The size of the parameter is embedded in the
|
|
* ioctl number, i.e. is ABI and thus immutable. Hack around the mess by
|
|
* creating an overlay to pass in an "unsigned long" without a cast (casting
|
|
* will make the compiler unhappy due to dereferencing an aliased pointer).
|
|
*/
|
|
#define __vm_sev_ioctl(vm, cmd, arg) \
|
|
({ \
|
|
int r; \
|
|
\
|
|
union { \
|
|
struct kvm_sev_cmd c; \
|
|
unsigned long raw; \
|
|
} sev_cmd = { .c = { \
|
|
.id = (cmd), \
|
|
.data = (uint64_t)(arg), \
|
|
.sev_fd = (vm)->arch.sev_fd, \
|
|
} }; \
|
|
\
|
|
r = __vm_ioctl(vm, KVM_MEMORY_ENCRYPT_OP, &sev_cmd.raw); \
|
|
r ?: sev_cmd.c.error; \
|
|
})
|
|
|
|
#define vm_sev_ioctl(vm, cmd, arg) \
|
|
({ \
|
|
int ret = __vm_sev_ioctl(vm, cmd, arg); \
|
|
\
|
|
__TEST_ASSERT_VM_VCPU_IOCTL(!ret, #cmd, ret, vm); \
|
|
})
|
|
|
|
void sev_vm_init(struct kvm_vm *vm);
|
|
void sev_es_vm_init(struct kvm_vm *vm);
|
|
|
|
static inline void sev_register_encrypted_memory(struct kvm_vm *vm,
|
|
struct userspace_mem_region *region)
|
|
{
|
|
struct kvm_enc_region range = {
|
|
.addr = region->region.userspace_addr,
|
|
.size = region->region.memory_size,
|
|
};
|
|
|
|
vm_ioctl(vm, KVM_MEMORY_ENCRYPT_REG_REGION, &range);
|
|
}
|
|
|
|
static inline void sev_launch_update_data(struct kvm_vm *vm, vm_paddr_t gpa,
|
|
uint64_t size)
|
|
{
|
|
struct kvm_sev_launch_update_data update_data = {
|
|
.uaddr = (unsigned long)addr_gpa2hva(vm, gpa),
|
|
.len = size,
|
|
};
|
|
|
|
vm_sev_ioctl(vm, KVM_SEV_LAUNCH_UPDATE_DATA, &update_data);
|
|
}
|
|
|
|
#endif /* SELFTEST_KVM_SEV_H */
|