diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2020-05-21 23:05:44 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 16:15:15 +0300 |
| commit | cb09ea2924cbf1a42da59bd30a59cc1836240bcb (patch) | |
| tree | 1ed2f628b2a16311f7c772c94719b0395653014d /arch/x86/xen | |
| parent | a16be368dd3fb695077cc9bc59c988b548955eec (diff) | |
| download | linux-cb09ea2924cbf1a42da59bd30a59cc1836240bcb.tar.xz | |
x86/entry: Convert XEN hypercall vector to IDTENTRY_SYSVEC
Convert the last oldstyle defined vector 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
Fixup the related XEN code by providing the primary C entry point in x86 to
avoid cluttering the generic code with X86'isms.
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>
Link: https://lore.kernel.org/r/20200521202119.741950104@linutronix.de
Diffstat (limited to 'arch/x86/xen')
| -rw-r--r-- | arch/x86/xen/enlighten_hvm.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten_hvm.c b/arch/x86/xen/enlighten_hvm.c index e138f7de52d2..3e89b0067ff0 100644 --- a/arch/x86/xen/enlighten_hvm.c +++ b/arch/x86/xen/enlighten_hvm.c @@ -13,6 +13,7 @@ #include <asm/smp.h> #include <asm/reboot.h> #include <asm/setup.h> +#include <asm/idtentry.h> #include <asm/hypervisor.h> #include <asm/e820/api.h> #include <asm/early_ioremap.h> @@ -118,6 +119,17 @@ static void __init init_hvm_pv_info(void) this_cpu_write(xen_vcpu_id, smp_processor_id()); } +DEFINE_IDTENTRY_SYSVEC(sysvec_xen_hvm_callback) +{ + struct pt_regs *old_regs = set_irq_regs(regs); + + inc_irq_stat(irq_hv_callback_count); + + xen_hvm_evtchn_do_upcall(); + + set_irq_regs(old_regs); +} + #ifdef CONFIG_KEXEC_CORE static void xen_hvm_shutdown(void) { |