From: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
To: mpe@ellerman.id.au, mikey@neuling.org
Cc: ravi.bangoria@linux.ibm.com, apopple@linux.ibm.com,
paulus@samba.org, npiggin@gmail.com, christophe.leroy@c-s.fr,
naveen.n.rao@linux.vnet.ibm.com, peterz@infradead.org,
jolsa@kernel.org, oleg@redhat.com, fweisbec@gmail.com,
mingo@kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 2/8] powerpc/watchpoint: Enable watchpoint functionality on power10 guest
Date: Thu, 4 Jun 2020 09:04:37 +0530 [thread overview]
Message-ID: <20200604033443.70591-3-ravi.bangoria@linux.ibm.com> (raw)
In-Reply-To: <20200604033443.70591-1-ravi.bangoria@linux.ibm.com>
CPU_FTR_DAWR is by default enabled for host via CPU_FTRS_DT_CPU_BASE
(controlled by CONFIG_PPC_DT_CPU_FTRS). But cpu-features device-tree
node is not PAPR compatible and thus not yet used by kvm or pHyp
guests. Enable watchpoint functionality on power10 guest (both kvm
and powervm) by adding CPU_FTR_DAWR to CPU_FTRS_POWER10. Note that
this change does not enable 2nd DAWR support.
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
---
arch/powerpc/include/asm/cputable.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index bac2252c839e..e506d429b1af 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -478,7 +478,7 @@ static inline void cpu_feature_keys_init(void) { }
CPU_FTR_CFAR | CPU_FTR_HVMODE | CPU_FTR_VMX_COPY | \
CPU_FTR_DBELL | CPU_FTR_HAS_PPR | CPU_FTR_ARCH_207S | \
CPU_FTR_TM_COMP | CPU_FTR_ARCH_300 | CPU_FTR_PKEY | \
- CPU_FTR_ARCH_31)
+ CPU_FTR_ARCH_31 | CPU_FTR_DAWR)
#define CPU_FTRS_CELL (CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \
--
2.26.2
next prev parent reply other threads:[~2020-06-04 3:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-04 3:34 [PATCH v2 0/8] powerpc/watchpoint: Enable 2nd DAWR on baremetal and powervm Ravi Bangoria
2020-06-04 3:34 ` [PATCH v2 1/8] powerpc/watchpoint: Fix 512 byte boundary limit Ravi Bangoria
2020-06-04 3:34 ` Ravi Bangoria [this message]
2020-06-04 3:34 ` [PATCH v2 3/8] powerpc/dt_cpu_ftrs: Add feature for 2nd DAWR Ravi Bangoria
2020-06-04 3:34 ` [PATCH v2 4/8] powerpc/watchpoint: Set CPU_FTR_DAWR1 based on pa-features bit Ravi Bangoria
2020-06-04 3:34 ` [PATCH v2 5/8] powerpc/watchpoint: Rename current H_SET_MODE DAWR macro Ravi Bangoria
2020-06-04 3:34 ` [PATCH v2 6/8] powerpc/watchpoint: Guest support for 2nd DAWR hcall Ravi Bangoria
2020-06-04 3:34 ` [PATCH v2 7/8] powerpc/watchpoint: Return available watchpoints dynamically Ravi Bangoria
2020-06-04 3:34 ` [PATCH v2 8/8] powerpc/watchpoint: Remove 512 byte boundary Ravi Bangoria
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