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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef SELFTEST_KVM_UTIL_ARCH_H
#define SELFTEST_KVM_UTIL_ARCH_H
#include <stdbool.h>
#include <stdint.h>
#include "kvm_util_types.h"
#include "test_util.h"
extern bool is_forced_emulation_enabled;
struct kvm_vm_arch {
vm_vaddr_t gdt;
vm_vaddr_t tss;
vm_vaddr_t idt;
uint64_t c_bit;
uint64_t s_bit;
int sev_fd;
bool is_pt_protected;
};
static inline bool __vm_arch_has_protected_memory(struct kvm_vm_arch *arch)
{
return arch->c_bit || arch->s_bit;
}
#define vm_arch_has_protected_memory(vm) \
__vm_arch_has_protected_memory(&(vm)->arch)
#define vcpu_arch_put_guest(mem, __val) \
do { \
const typeof(mem) val = (__val); \
\
if (!is_forced_emulation_enabled || guest_random_bool(&guest_rng)) { \
(mem) = val; \
} else if (guest_random_bool(&guest_rng)) { \
__asm__ __volatile__(KVM_FEP "mov %1, %0" \
: "+m" (mem) \
: "r" (val) : "memory"); \
} else { \
uint64_t __old = READ_ONCE(mem); \
\
__asm__ __volatile__(KVM_FEP LOCK_PREFIX "cmpxchg %[new], %[ptr]" \
: [ptr] "+m" (mem), [old] "+a" (__old) \
: [new]"r" (val) : "memory", "cc"); \
} \
} while (0)
#endif // SELFTEST_KVM_UTIL_ARCH_H
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