Contributors: 22
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Christian Bornträger |
145 |
34.52% |
1 |
4.00% |
| Andrew Lutomirski |
61 |
14.52% |
1 |
4.00% |
| Paolo Bonzini |
45 |
10.71% |
3 |
12.00% |
| Gleb Natapov |
41 |
9.76% |
1 |
4.00% |
| Srivatsa Vaddagiri |
25 |
5.95% |
1 |
4.00% |
| Eric B Munson |
24 |
5.71% |
1 |
4.00% |
| Glauber de Oliveira Costa |
23 |
5.48% |
2 |
8.00% |
| Wanpeng Li |
20 |
4.76% |
1 |
4.00% |
| Yi Wang |
8 |
1.90% |
1 |
4.00% |
| Anthony Liguori |
5 |
1.19% |
1 |
4.00% |
| Alexander Graf |
5 |
1.19% |
1 |
4.00% |
| H. Peter Anvin |
3 |
0.71% |
1 |
4.00% |
| David Howells |
2 |
0.48% |
1 |
4.00% |
| Avi Kivity |
2 |
0.48% |
1 |
4.00% |
| Thomas Gleixner |
2 |
0.48% |
1 |
4.00% |
| Vitaly Kuznetsov |
2 |
0.48% |
1 |
4.00% |
| Marcelo Tosatti |
2 |
0.48% |
1 |
4.00% |
| Peter Zijlstra |
1 |
0.24% |
1 |
4.00% |
| Greg Kroah-Hartman |
1 |
0.24% |
1 |
4.00% |
| Jan Kiszka |
1 |
0.24% |
1 |
4.00% |
| Joe Perches |
1 |
0.24% |
1 |
4.00% |
| Jesse Larrew |
1 |
0.24% |
1 |
4.00% |
| Total |
420 |
|
25 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_KVM_PARA_H
#define _ASM_X86_KVM_PARA_H
#include <asm/processor.h>
#include <asm/alternative.h>
#include <uapi/asm/kvm_para.h>
extern void kvmclock_init(void);
#ifdef CONFIG_KVM_GUEST
bool kvm_check_and_clear_guest_paused(void);
#else
static inline bool kvm_check_and_clear_guest_paused(void)
{
return false;
}
#endif /* CONFIG_KVM_GUEST */
#define KVM_HYPERCALL \
ALTERNATIVE(".byte 0x0f,0x01,0xc1", ".byte 0x0f,0x01,0xd9", X86_FEATURE_VMMCALL)
/* For KVM hypercalls, a three-byte sequence of either the vmcall or the vmmcall
* instruction. The hypervisor may replace it with something else but only the
* instructions are guaranteed to be supported.
*
* Up to four arguments may be passed in rbx, rcx, rdx, and rsi respectively.
* The hypercall number should be placed in rax and the return value will be
* placed in rax. No other registers will be clobbered unless explicitly
* noted by the particular hypercall.
*/
static inline long kvm_hypercall0(unsigned int nr)
{
long ret;
asm volatile(KVM_HYPERCALL
: "=a"(ret)
: "a"(nr)
: "memory");
return ret;
}
static inline long kvm_hypercall1(unsigned int nr, unsigned long p1)
{
long ret;
asm volatile(KVM_HYPERCALL
: "=a"(ret)
: "a"(nr), "b"(p1)
: "memory");
return ret;
}
static inline long kvm_hypercall2(unsigned int nr, unsigned long p1,
unsigned long p2)
{
long ret;
asm volatile(KVM_HYPERCALL
: "=a"(ret)
: "a"(nr), "b"(p1), "c"(p2)
: "memory");
return ret;
}
static inline long kvm_hypercall3(unsigned int nr, unsigned long p1,
unsigned long p2, unsigned long p3)
{
long ret;
asm volatile(KVM_HYPERCALL
: "=a"(ret)
: "a"(nr), "b"(p1), "c"(p2), "d"(p3)
: "memory");
return ret;
}
static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
unsigned long p2, unsigned long p3,
unsigned long p4)
{
long ret;
asm volatile(KVM_HYPERCALL
: "=a"(ret)
: "a"(nr), "b"(p1), "c"(p2), "d"(p3), "S"(p4)
: "memory");
return ret;
}
#ifdef CONFIG_KVM_GUEST
bool kvm_para_available(void);
unsigned int kvm_arch_para_features(void);
unsigned int kvm_arch_para_hints(void);
void kvm_async_pf_task_wait_schedule(u32 token);
void kvm_async_pf_task_wake(u32 token);
u32 kvm_read_and_reset_apf_flags(void);
void kvm_disable_steal_time(void);
bool __kvm_handle_async_pf(struct pt_regs *regs, u32 token);
DECLARE_STATIC_KEY_FALSE(kvm_async_pf_enabled);
static __always_inline bool kvm_handle_async_pf(struct pt_regs *regs, u32 token)
{
if (static_branch_unlikely(&kvm_async_pf_enabled))
return __kvm_handle_async_pf(regs, token);
else
return false;
}
#ifdef CONFIG_PARAVIRT_SPINLOCKS
void __init kvm_spinlock_init(void);
#else /* !CONFIG_PARAVIRT_SPINLOCKS */
static inline void kvm_spinlock_init(void)
{
}
#endif /* CONFIG_PARAVIRT_SPINLOCKS */
#else /* CONFIG_KVM_GUEST */
#define kvm_async_pf_task_wait_schedule(T) do {} while(0)
#define kvm_async_pf_task_wake(T) do {} while(0)
static inline bool kvm_para_available(void)
{
return false;
}
static inline unsigned int kvm_arch_para_features(void)
{
return 0;
}
static inline unsigned int kvm_arch_para_hints(void)
{
return 0;
}
static inline u32 kvm_read_and_reset_apf_flags(void)
{
return 0;
}
static inline void kvm_disable_steal_time(void)
{
return;
}
static __always_inline bool kvm_handle_async_pf(struct pt_regs *regs, u32 token)
{
return false;
}
#endif
#endif /* _ASM_X86_KVM_PARA_H */