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| author | Ingo Molnar <mingo@kernel.org> | 2020-07-05 21:33:11 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-07-05 21:39:23 +0200 |
| commit | a4c0e91d1d65bc58f928b80ed824e10e165da22c (patch) | |
| tree | 460a9ebeea1c8bc8c7f26e06b600e41363ac7489 | |
| parent | x86/ldt: Disable 16-bit segments on Xen PV (diff) | |
| download | linux-a4c0e91d1d65bc58f928b80ed824e10e165da22c.tar.xz linux-a4c0e91d1d65bc58f928b80ed824e10e165da22c.zip | |
x86/entry/32: Fix XEN_PV build dependency
xenpv_exc_nmi() and xenpv_exc_debug() are only defined on 64-bit kernels,
but they snuck into the 32-bit build via <asm/identry.h>, causing the link
to fail:
ld: arch/x86/entry/entry_32.o: in function `asm_xenpv_exc_nmi':
(.entry.text+0x817): undefined reference to `xenpv_exc_nmi'
ld: arch/x86/entry/entry_32.o: in function `asm_xenpv_exc_debug':
(.entry.text+0x827): undefined reference to `xenpv_exc_debug'
Only use them on 64-bit kernels.
Fixes: f41f0824224e: ("x86/entry/xen: Route #DB correctly on Xen PV")
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/include/asm/idtentry.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/idtentry.h b/arch/x86/include/asm/idtentry.h index eeac6dc2adaa..f3d70830bf2a 100644 --- a/arch/x86/include/asm/idtentry.h +++ b/arch/x86/include/asm/idtentry.h @@ -553,7 +553,7 @@ DECLARE_IDTENTRY_RAW(X86_TRAP_MC, exc_machine_check); /* NMI */ DECLARE_IDTENTRY_NMI(X86_TRAP_NMI, exc_nmi); -#ifdef CONFIG_XEN_PV +#if defined(CONFIG_XEN_PV) && defined(CONFIG_X86_64) DECLARE_IDTENTRY_RAW(X86_TRAP_NMI, xenpv_exc_nmi); #endif @@ -563,7 +563,7 @@ DECLARE_IDTENTRY_DEBUG(X86_TRAP_DB, exc_debug); #else DECLARE_IDTENTRY_RAW(X86_TRAP_DB, exc_debug); #endif -#ifdef CONFIG_XEN_PV +#if defined(CONFIG_XEN_PV) && defined(CONFIG_X86_64) DECLARE_IDTENTRY_RAW(X86_TRAP_DB, xenpv_exc_debug); #endif |