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x86/entry: Convert various hypervisor vectors to IDTENTRY_SYSVEC

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Convert various hypervisor vectors to IDTENTRY_SYSVEC:

  - Implement the C entry point with DEFINE_IDTENTRY_SYSVEC
  - Emit the ASM stub with DECLARE_IDTENTRY_SYSVEC
  - Remove the ASM idtentries in 64-bit
  - Remove the BUILD_INTERRUPT entries in 32-bit
  - Remove the old prototypes

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Wei Liu <wei.liu@kernel.org>
Link: https://lore.kernel.org/r/20200521202119.647997594@linutronix.de
This commit is contained in:
Thomas Gleixner
2020-05-21 22:05:43 +02:00
parent 9c3b1f4975
commit a16be368dd
9 changed files with 27 additions and 98 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
arch/x86/include/asm/acrn.h
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@@ -1,11 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_ACRN_H
#define _ASM_X86_ACRN_H
extern void acrn_hv_callback_vector(void);
#ifdef CONFIG_TRACING
#define trace_acrn_hv_callback_vector acrn_hv_callback_vector
#endif
extern void acrn_hv_vector_handler(struct pt_regs *regs);
#endif /* _ASM_X86_ACRN_H */

20
arch/x86/include/asm/apic.h
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@@ -519,26 +519,6 @@ static inline bool apic_id_is_primary_thread(unsigned int id) { return false; }
static inline void apic_smt_update(void) { }
#endif
extern void irq_enter(void);
extern void irq_exit(void);
static inline void entering_irq(void)
{
irq_enter();
kvm_set_cpu_l1tf_flush_l1d();
}
static inline void entering_ack_irq(void)
{
entering_irq();
ack_APIC_irq();
}
static inline void exiting_irq(void)
{
irq_exit();
}
extern void ioapic_zap_locks(void);
#endif /* _ASM_X86_APIC_H */

10
arch/x86/include/asm/idtentry.h
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@@ -634,6 +634,16 @@ DECLARE_IDTENTRY_SYSVEC(POSTED_INTR_WAKEUP_VECTOR, sysvec_kvm_posted_intr_wakeup
DECLARE_IDTENTRY_SYSVEC(POSTED_INTR_NESTED_VECTOR, sysvec_kvm_posted_intr_nested_ipi);
#endif
#if IS_ENABLED(CONFIG_HYPERV)
DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_CALLBACK_VECTOR, sysvec_hyperv_callback);
DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_REENLIGHTENMENT_VECTOR, sysvec_hyperv_reenlightenment);
DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_STIMER0_VECTOR, sysvec_hyperv_stimer0);
#endif
#if IS_ENABLED(CONFIG_ACRN_GUEST)
DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_CALLBACK_VECTOR, sysvec_acrn_hv_callback);
#endif
#undef X86_TRAP_OTHER
#endif

13
arch/x86/include/asm/mshyperv.h
View File

@@ -54,20 +54,8 @@ typedef int (*hyperv_fill_flush_list_func)(
vclocks_set_used(VDSO_CLOCKMODE_HVCLOCK);
#define hv_get_raw_timer() rdtsc_ordered()
void hyperv_callback_vector(void);
void hyperv_reenlightenment_vector(void);
#ifdef CONFIG_TRACING
#define trace_hyperv_callback_vector hyperv_callback_vector
#endif
void hyperv_vector_handler(struct pt_regs *regs);
/*
* Routines for stimer0 Direct Mode handling.
* On x86/x64, there are no percpu actions to take.
*/
void hv_stimer0_vector_handler(struct pt_regs *regs);
void hv_stimer0_callback_vector(void);
static inline void hv_enable_stimer0_percpu_irq(int irq) {}
static inline void hv_disable_stimer0_percpu_irq(int irq) {}
@@ -226,7 +214,6 @@ void hyperv_setup_mmu_ops(void);
void *hv_alloc_hyperv_page(void);
void *hv_alloc_hyperv_zeroed_page(void);
void hv_free_hyperv_page(unsigned long addr);
void hyperv_reenlightenment_intr(struct pt_regs *regs);
void set_hv_tscchange_cb(void (*cb)(void));
void clear_hv_tscchange_cb(void);
void hyperv_stop_tsc_emulation(void);