| Message ID | 721e325bfa971a463df1b411b3ea68460eb8070e.1648847675.git.reinette.chatre@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | x86/sgx and selftests/sgx: Support SGX2 | expand |
On Mon, Apr 04, 2022 at 09:49:17AM -0700, Reinette Chatre wrote: > 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> > --- > No changes since V2 > > Changes since V1: > - Replace "for more usages" by "for usage by SGX2" (Jarkko) > > arch/x86/kernel/cpu/sgx/main.c | 2 +- > arch/x86/kernel/cpu/sgx/sgx.h | 2 ++ > 2 files changed, 3 insertions(+), 1 deletion(-) > > diff --git a/arch/x86/kernel/cpu/sgx/main.c b/arch/x86/kernel/cpu/sgx/main.c > index ce9e87d5f8ec..6e2cb7564080 100644 > --- a/arch/x86/kernel/cpu/sgx/main.c > +++ b/arch/x86/kernel/cpu/sgx/main.c > @@ -172,7 +172,7 @@ 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 > -- > 2.25.1 > Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> BR, Jarkko
diff --git a/arch/x86/kernel/cpu/sgx/main.c b/arch/x86/kernel/cpu/sgx/main.c index ce9e87d5f8ec..6e2cb7564080 100644 --- a/arch/x86/kernel/cpu/sgx/main.c +++ b/arch/x86/kernel/cpu/sgx/main.c @@ -172,7 +172,7 @@ 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
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> --- No changes since V2 Changes since V1: - Replace "for more usages" by "for usage by SGX2" (Jarkko) arch/x86/kernel/cpu/sgx/main.c | 2 +- arch/x86/kernel/cpu/sgx/sgx.h | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-)