Commit 4458c236 authored Apr 25, 2013 by Borislav Petkov Committed by Andreas Färber May 06, 2013

target-i386: n270 can MOVBE



The Atom core (cpu name "n270" in QEMU speak) supports MOVBE. This is
needed when booting 3.8 and later linux kernels built with the MATOM
target because we require MOVBE in order to boot properly now.

Signed-off-by: Borislav Petkov <bp@suse.de>
[ehabkost: added compat code to disable MOVBE on pc-*-1.4 and older]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>

parent 0668af54

hw/i386/pc_piix.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -250,6 +250,7 @@ static void pc_init_pci_1_4(QEMUMachineInitArgs *args)
		{
		pc_sysfw_flash_vs_rom_bug_compatible = true;
		has_pvpanic = false;
		x86_cpu_compat_set_features("n270", FEAT_1_ECX, 0, CPUID_EXT_MOVBE);
		pc_init_pci(args);
		}

hw/i386/pc_q35.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -212,6 +212,7 @@ static void pc_q35_init_1_4(QEMUMachineInitArgs *args)
		{
		pc_sysfw_flash_vs_rom_bug_compatible = true;
		has_pvpanic = false;
		x86_cpu_compat_set_features("n270", FEAT_1_ECX, 0, CPUID_EXT_MOVBE);
		pc_q35_init(args);
		}

target-i386/cpu.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -657,7 +657,8 @@ static x86_def_t builtin_x86_defs[] = {
		/* Some CPUs got no CPUID_SEP */
		.features[FEAT_1_ECX] =
		CPUID_EXT_SSE3 \| CPUID_EXT_MONITOR \| CPUID_EXT_SSSE3 \|
		CPUID_EXT_DSCPL \| CPUID_EXT_EST \| CPUID_EXT_TM2 \| CPUID_EXT_XTPR,
		CPUID_EXT_DSCPL \| CPUID_EXT_EST \| CPUID_EXT_TM2 \| CPUID_EXT_XTPR \|
		CPUID_EXT_MOVBE,
		.features[FEAT_8000_0001_EDX] =
		(PPRO_FEATURES & CPUID_EXT2_AMD_ALIASES) \|
		CPUID_EXT2_NX,