diff mbox series

[RFC,19/73] x86/entry: Export 32-bit ignore syscall entry and __ia32_enabled variable

Message ID 20240226143630.33643-20-jiangshanlai@gmail.com (mailing list archive)
State New, archived
Headers show
Series KVM: x86/PVM: Introduce a new hypervisor | expand

Commit Message

Lai Jiangshan Feb. 26, 2024, 2:35 p.m. UTC 
From: Hou Wenlong <houwenlong.hwl@antgroup.com>

For PVM hypervisor, it ignores 32-bit syscall for guest currenlty.
Therefore, export 32-bit ignore syscall entry and __ia32_enabled
variable for PVM module.

Suggested-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
Signed-off-by: Hou Wenlong <houwenlong.hwl@antgroup.com>
Signed-off-by: Lai Jiangshan <jiangshan.ljs@antgroup.com>
---
 arch/x86/entry/common.c   | 1 +
 arch/x86/entry/entry_64.S | 1 +
 2 files changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
index 6356060caaf3..00ff701aa1be 100644
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -141,6 +141,7 @@  static __always_inline int syscall_32_enter(struct pt_regs *regs)
 
 #ifdef CONFIG_IA32_EMULATION
 bool __ia32_enabled __ro_after_init = !IS_ENABLED(CONFIG_IA32_EMULATION_DEFAULT_DISABLED);
+EXPORT_SYMBOL_GPL(__ia32_enabled);
 
 static int ia32_emulation_override_cmdline(char *arg)
 {
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 65bfebebeab6..5b25ea4a16ae 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -1527,6 +1527,7 @@  SYM_CODE_START(entry_SYSCALL32_ignore)
 	mov	$-ENOSYS, %eax
 	sysretl
 SYM_CODE_END(entry_SYSCALL32_ignore)
+EXPORT_SYMBOL_GPL(entry_SYSCALL32_ignore)
 
 .pushsection .text, "ax"
 	__FUNC_ALIGN