diff options
| author | Reinette Chatre <reinette.chatre@intel.com> | 2022-05-10 11:08:45 -0700 |
|---|---|---|
| committer | Dave Hansen <dave.hansen@linux.intel.com> | 2022-07-07 10:13:02 -0700 |
| commit | c7c6a8a61b0066ba7e891783032dc2a7873c6dc7 (patch) | |
| tree | 4174ae342382de8ab5334c70fa4a3e72a35e12e9 /arch/x86/kernel/cpu | |
| parent | f89c2f9bf5a64f619de06ded4349dff5a35da860 (diff) | |
| download | lwn-c7c6a8a61b0066ba7e891783032dc2a7873c6dc7.tar.gz lwn-c7c6a8a61b0066ba7e891783032dc2a7873c6dc7.zip | |
x86/sgx: Make sgx_ipi_cb() available internally
The ETRACK function followed by an IPI to all CPUs within an enclave
is a common pattern with more frequent use in support of SGX2.
Make the (empty) IPI callback function available internally in
preparation for usage by SGX2.
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Link: https://lkml.kernel.org/r/1179ed4a9c3c1c2abf49d51bfcf2c30b493181cc.1652137848.git.reinette.chatre@intel.com
Diffstat (limited to 'arch/x86/kernel/cpu')
| -rw-r--r-- | arch/x86/kernel/cpu/sgx/main.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/sgx/sgx.h | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/sgx/main.c b/arch/x86/kernel/cpu/sgx/main.c index 9df2221af498..180ad840b226 100644 --- a/arch/x86/kernel/cpu/sgx/main.c +++ b/arch/x86/kernel/cpu/sgx/main.c @@ -174,7 +174,7 @@ static int __sgx_encl_ewb(struct sgx_epc_page *epc_page, void *va_slot, return ret; } -static void sgx_ipi_cb(void *info) +void sgx_ipi_cb(void *info) { } diff --git a/arch/x86/kernel/cpu/sgx/sgx.h b/arch/x86/kernel/cpu/sgx/sgx.h index 0f17def9fe6f..b30cee4de903 100644 --- a/arch/x86/kernel/cpu/sgx/sgx.h +++ b/arch/x86/kernel/cpu/sgx/sgx.h @@ -90,6 +90,8 @@ void sgx_mark_page_reclaimable(struct sgx_epc_page *page); int sgx_unmark_page_reclaimable(struct sgx_epc_page *page); struct sgx_epc_page *sgx_alloc_epc_page(void *owner, bool reclaim); +void sgx_ipi_cb(void *info); + #ifdef CONFIG_X86_SGX_KVM int __init sgx_vepc_init(void); #else |