search for: cflags_head64

...ernel/Makefile > +++ b/arch/x86/kernel/Makefile > @@ -39,6 +39,10 @@ ifdef CONFIG_FRAME_POINTER > OBJECT_FILES_NON_STANDARD_ftrace_$(BITS).o := y > endif > > +# make sure head64.c is built without stack protector > +nostackp := $(call cc-option, -fno-stack-protector) > +CFLAGS_head64.o := $(nostackp) Recent refactoring[1] for stack protector suggests this should just unconditionally be: CFLAGS_head64.o += -fno-stack-protector But otherwise, yeah, this should be fine here -- it's all early init stuff. Reviewed-by: Kees Cook <keescook at chromium.org> [1] https:...

...cf..1192de38fa56 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -35,6 +35,10 @@ ifdef CONFIG_FRAME_POINTER OBJECT_FILES_NON_STANDARD_ftrace_$(BITS).o := y endif +# make sure head64.c is built without stack protector +nostackp := $(call cc-option, -fno-stack-protector) +CFLAGS_head64.o := $(nostackp) + # If instrumentation of this dir is enabled, boot hangs during first second. # Probably could be more selective here, but note that files related to irqs, # boot, dumpstack/stacktrace, etc are either non-interesting or can lead to -- 2.17.1

...91..1b166b866059 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -39,6 +39,10 @@ ifdef CONFIG_FRAME_POINTER OBJECT_FILES_NON_STANDARD_ftrace_$(BITS).o := y endif +# make sure head64.c is built without stack protector +nostackp := $(call cc-option, -fno-stack-protector) +CFLAGS_head64.o := $(nostackp) + # If instrumentation of this dir is enabled, boot hangs during first second. # Probably could be more selective here, but note that files related to irqs, # boot, dumpstack/stacktrace, etc are either non-interesting or can lead to -- 2.27.0

...efile > +++ b/arch/x86/kernel/Makefile > @@ -35,6 +35,10 @@ ifdef CONFIG_FRAME_POINTER > OBJECT_FILES_NON_STANDARD_ftrace_$(BITS).o := y > endif > > +# make sure head64.c is built without stack protector > +nostackp := $(call cc-option, -fno-stack-protector) > +CFLAGS_head64.o := $(nostackp) > + > # If instrumentation of this dir is enabled, boot hangs during first second. > # Probably could be more selective here, but note that files related to irqs, > # boot, dumpstack/stacktrace, etc are either non-interesting or can lead to The proper...

...efile > +++ b/arch/x86/kernel/Makefile > @@ -35,6 +35,10 @@ ifdef CONFIG_FRAME_POINTER > OBJECT_FILES_NON_STANDARD_ftrace_$(BITS).o := y > endif > > +# make sure head64.c is built without stack protector > +nostackp := $(call cc-option, -fno-stack-protector) > +CFLAGS_head64.o := $(nostackp) > + > # If instrumentation of this dir is enabled, boot hangs during first second. > # Probably could be more selective here, but note that files related to irqs, > # boot, dumpstack/stacktrace, etc are either non-interesting or can lead to The proper...

From: Joerg Roedel <jroedel at suse.de> Hi, here is the fourth version of the SEV-ES Guest Support patches. I addressed the review comments sent to me for the previous version and rebased the code v5.8-rc5. The biggest change in this version is the IST handling code for the #VC handler. I adapted the entry code for the #VC handler to the big pile of entry code changes merged into

From: Joerg Roedel <jroedel at suse.de> Hi, here is the fourth version of the SEV-ES Guest Support patches. I addressed the review comments sent to me for the previous version and rebased the code v5.8-rc5. The biggest change in this version is the IST handling code for the #VC handler. I adapted the entry code for the #VC handler to the big pile of entry code changes merged into

Changes: - patch v2: - Adapt patch to work post KPTI and compiler changes - Redo all performance testing with latest configs and compilers - Simplify mov macro on PIE (MOVABS now) - Reduce GOT footprint - patch v1: - Simplify ftrace implementation. - Use gcc mstack-protector-guard-reg=%gs with PIE when possible. - rfc v3: - Use --emit-relocs instead of -pie to reduce

Changes: - patch v2: - Adapt patch to work post KPTI and compiler changes - Redo all performance testing with latest configs and compilers - Simplify mov macro on PIE (MOVABS now) - Reduce GOT footprint - patch v1: - Simplify ftrace implementation. - Use gcc mstack-protector-guard-reg=%gs with PIE when possible. - rfc v3: - Use --emit-relocs instead of -pie to reduce

Changes: - patch v3: - Update on message to describe longer term PIE goal. - Minor change on ftrace if condition. - Changed code using xchgq. - patch v2: - Adapt patch to work post KPTI and compiler changes - Redo all performance testing with latest configs and compilers - Simplify mov macro on PIE (MOVABS now) - Reduce GOT footprint - patch v1: - Simplify ftrace

Hi, here is the next version of changes to enable Linux to run as an SEV-ES guest. The code was rebased to v5.7-rc3 and got a fair number of changes since the last version. What is SEV-ES ============== SEV-ES is an acronym for 'Secure Encrypted Virtualization - Encrypted State' and means a hardware feature of AMD processors which hides the register state of VCPUs to the hypervisor by

Hi, here is the next version of changes to enable Linux to run as an SEV-ES guest. The code was rebased to v5.7-rc3 and got a fair number of changes since the last version. What is SEV-ES ============== SEV-ES is an acronym for 'Secure Encrypted Virtualization - Encrypted State' and means a hardware feature of AMD processors which hides the register state of VCPUs to the hypervisor by