2020-09-16 17:39:49

by David Brazdil

Subject: [PATCH v3 03/11] kvm: arm64: Only define __kvm_ex_table for CONFIG_KVM

Minor cleanup that only creates __kvm_ex_table ELF section and
related symbols if CONFIG_KVM is enabled.

Signed-off-by: David Brazdil <[email protected]>
---
arch/arm64/kernel/vmlinux.lds.S | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index 7cba7623fcec..0d543570e811 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -21,11 +21,15 @@ ENTRY(_text)
jiffies = jiffies_64;


+#ifdef CONFIG_KVM
#define HYPERVISOR_EXTABLE \
. = ALIGN(SZ_8); \
__start___kvm_ex_table = .; \
*(__kvm_ex_table) \
__stop___kvm_ex_table = .;
+#else /* CONFIG_KVM */
+#define HYPERVISOR_EXTABLE
+#endif

#define HYPERVISOR_TEXT \
/* \
--
2.28.0.618.gf4bc123cb7-goog

2020-09-18 09:03:22

by Will Deacon

Subject: Re: [PATCH v3 03/11] kvm: arm64: Only define __kvm_ex_table for CONFIG_KVM

On Wed, Sep 16, 2020 at 06:34:31PM +0100, David Brazdil wrote:
> Minor cleanup that only creates __kvm_ex_table ELF section and
> related symbols if CONFIG_KVM is enabled.
>
> Signed-off-by: David Brazdil <[email protected]>
> ---
> arch/arm64/kernel/vmlinux.lds.S | 4 ++++
> 1 file changed, 4 insertions(+)

It's also useful because we're about to add another entry here, so:

Acked-by: Will Deacon <[email protected]>

Will