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Date: Sun, 9 Aug 2020 09:28:42 +0800 From: Huacai Chen <chenhc@...ote.com> To: Jiaxun Yang <jiaxun.yang@...goat.com> Cc: "open list:MIPS" <linux-mips@...r.kernel.org>, Thomas Bogendoerfer <tsbogend@...ha.franken.de>, LKML <linux-kernel@...r.kernel.org> Subject: Re: [PATCH for-fixes] MIPS: Loongson64: Do not override watch and ejtag feature Reviewed-by: Huacai Chen <chenhc@...ote.com> On Sat, Aug 8, 2020 at 8:33 PM Jiaxun Yang <jiaxun.yang@...goat.com> wrote: > > Do not override ejtag feature to 0 as Loongson 3A1000+ do have ejtag. > For watch, as KVM emulated CPU doesn't have watch feature, we should > not enable it unconditionally. > > Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com> > --- > This patch should go into mips-fixes tree as watch feature is blocking > KVM guest boot in some cases. > --- > arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h | 2 -- > 1 file changed, 2 deletions(-) > > diff --git a/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h b/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h > index b6e9c99b85a5..eb181224eb4c 100644 > --- a/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h > +++ b/arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h > @@ -26,7 +26,6 @@ > #define cpu_has_counter 1 > #define cpu_has_dc_aliases (PAGE_SIZE < 0x4000) > #define cpu_has_divec 0 > -#define cpu_has_ejtag 0 > #define cpu_has_inclusive_pcaches 1 > #define cpu_has_llsc 1 > #define cpu_has_mcheck 0 > @@ -42,7 +41,6 @@ > #define cpu_has_veic 0 > #define cpu_has_vint 0 > #define cpu_has_vtag_icache 0 > -#define cpu_has_watch 1 > #define cpu_has_wsbh 1 > #define cpu_has_ic_fills_f_dc 1 > #define cpu_hwrena_impl_bits 0xc0000000 > -- > 2.28.0.rc1 >
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