Re: [PATCH v2 01/23] x86/boot: remove unneeded instruction
On Mon, Jul 27, 2015 at 09:46:08PM +0200, Daniel Kiper wrote: On Fri, Jul 24, 2015 at 12:22:57PM -0400, Konrad Rzeszutek Wilk wrote: On Mon, Jul 20, 2015 at 04:28:56PM +0200, Daniel Kiper wrote: Signed-off-by: Daniel Kiper daniel.ki...@oracle.com Don't you use it in: /* Switch to low-memory stack. */ 193 mov sym_phys(trampoline_phys),%edi 194 lea 0x1(%edi),%esp 195 lea trampoline_boot_cpu_entry-trampoline_start(%edi),%eax ? Yep, but... --- xen/arch/x86/boot/head.S |1 - 1 file changed, 1 deletion(-) diff --git a/xen/arch/x86/boot/head.S b/xen/arch/x86/boot/head.S index cfd59dc..f63b349 100644 --- a/xen/arch/x86/boot/head.S +++ b/xen/arch/x86/boot/head.S @@ -169,7 +169,6 @@ __start: /* Apply relocations to bootstrap trampoline. */ mov sym_phys(trampoline_phys),%edx ...relevant value is stored in sym_phys(trampoline_phys) earlier then it is read into %edx here and... mov $sym_phys(__trampoline_rel_start),%edi -mov %edx,sym_phys(trampoline_phys) ...it is put back to sym_phys(trampoline_phys) without any change here :-))). So, I suppose this is remnant from something which was removed once but somebody forgot to remove this instruction too... This patch fixes it. Reviewed-by: Konrad Rzeszutek Wilk konrad.w...@oracle.com ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
Re: [PATCH v2 01/23] x86/boot: remove unneeded instruction
On Fri, Jul 24, 2015 at 12:22:57PM -0400, Konrad Rzeszutek Wilk wrote: On Mon, Jul 20, 2015 at 04:28:56PM +0200, Daniel Kiper wrote: Signed-off-by: Daniel Kiper daniel.ki...@oracle.com Don't you use it in: /* Switch to low-memory stack. */ 193 mov sym_phys(trampoline_phys),%edi 194 lea 0x1(%edi),%esp 195 lea trampoline_boot_cpu_entry-trampoline_start(%edi),%eax ? Yep, but... --- xen/arch/x86/boot/head.S |1 - 1 file changed, 1 deletion(-) diff --git a/xen/arch/x86/boot/head.S b/xen/arch/x86/boot/head.S index cfd59dc..f63b349 100644 --- a/xen/arch/x86/boot/head.S +++ b/xen/arch/x86/boot/head.S @@ -169,7 +169,6 @@ __start: /* Apply relocations to bootstrap trampoline. */ mov sym_phys(trampoline_phys),%edx ...relevant value is stored in sym_phys(trampoline_phys) earlier then it is read into %edx here and... mov $sym_phys(__trampoline_rel_start),%edi -mov %edx,sym_phys(trampoline_phys) ...it is put back to sym_phys(trampoline_phys) without any change here :-))). So, I suppose this is remnant from something which was removed once but somebody forgot to remove this instruction too... This patch fixes it. Daniel ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
Re: [PATCH v2 01/23] x86/boot: remove unneeded instruction
On Mon, Jul 20, 2015 at 04:28:56PM +0200, Daniel Kiper wrote: Signed-off-by: Daniel Kiper daniel.ki...@oracle.com Don't you use it in: /* Switch to low-memory stack. */ 193 mov sym_phys(trampoline_phys),%edi 194 lea 0x1(%edi),%esp 195 lea trampoline_boot_cpu_entry-trampoline_start(%edi),%eax ? --- xen/arch/x86/boot/head.S |1 - 1 file changed, 1 deletion(-) diff --git a/xen/arch/x86/boot/head.S b/xen/arch/x86/boot/head.S index cfd59dc..f63b349 100644 --- a/xen/arch/x86/boot/head.S +++ b/xen/arch/x86/boot/head.S @@ -169,7 +169,6 @@ __start: /* Apply relocations to bootstrap trampoline. */ mov sym_phys(trampoline_phys),%edx mov $sym_phys(__trampoline_rel_start),%edi -mov %edx,sym_phys(trampoline_phys) 1: mov (%edi),%eax add %edx,(%edi,%eax) -- 1.7.10.4 ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
[PATCH v2 01/23] x86/boot: remove unneeded instruction
Signed-off-by: Daniel Kiper daniel.ki...@oracle.com --- xen/arch/x86/boot/head.S |1 - 1 file changed, 1 deletion(-) diff --git a/xen/arch/x86/boot/head.S b/xen/arch/x86/boot/head.S index cfd59dc..f63b349 100644 --- a/xen/arch/x86/boot/head.S +++ b/xen/arch/x86/boot/head.S @@ -169,7 +169,6 @@ __start: /* Apply relocations to bootstrap trampoline. */ mov sym_phys(trampoline_phys),%edx mov $sym_phys(__trampoline_rel_start),%edi -mov %edx,sym_phys(trampoline_phys) 1: mov (%edi),%eax add %edx,(%edi,%eax) -- 1.7.10.4 ___ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
