From: vijay.kilari@gmail.com
To: Ian.Campbell@citrix.com, julien.grall@linaro.org,
stefano.stabellini@eu.citrix.com, stefano.stabellini@citrix.com,
tim@xen.org, xen-devel@lists.xen.org
Cc: Prasun.Kapoor@caviumnetworks.com,
Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>,
manish.jaggi@caviumnetworks.com, vijay.kilari@gmail.com
Subject: [RFC PATCH] xen/arm: remove check for generic timer support for arm64
Date: Thu, 18 Sep 2014 17:43:49 +0530 [thread overview]
Message-ID: <1411042429-17108-4-git-send-email-vijay.kilari@gmail.com> (raw)
In-Reply-To: <1411042429-17108-1-git-send-email-vijay.kilari@gmail.com>
From: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
Information about support for generic support is available in
IDR_PFR1 register in ARMv7. Where as this information is not
available in ARMv8 that supports only aarch64 bit mode.
ARMv8 being always supports generic timer, this check is not
required.
For platforms that support only aarch64 mode, IDR_PFR1 is
not implemented
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
---
xen/include/asm-arm/cpufeature.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/xen/include/asm-arm/cpufeature.h b/xen/include/asm-arm/cpufeature.h
index aec9173..7a6d3de 100644
--- a/xen/include/asm-arm/cpufeature.h
+++ b/xen/include/asm-arm/cpufeature.h
@@ -27,7 +27,11 @@
#define cpu_has_jazelle (boot_cpu_feature32(jazelle) >= 0)
#define cpu_has_thumbee (boot_cpu_feature32(thumbee) == 1)
+#ifdef CONFIG_ARM_32
#define cpu_has_gentimer (boot_cpu_feature32(gentimer) == 1)
+#else
+#define cpu_has_gentimer (1)
+#endif
#define cpu_has_security (boot_cpu_feature32(security) > 0)
#endif
--
1.7.9.5
next prev parent reply other threads:[~2014-09-18 12:13 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-18 12:13 [PATCH] xen/arm: Use REG_RANK_INDEX macro vijay.kilari
2014-09-18 12:13 ` [RFC PATCH] xen/arm: check on domain type against hardware support vijay.kilari
2014-09-23 16:31 ` Ian Campbell
2014-09-25 8:31 ` Vijay Kilari
2014-09-25 11:08 ` Ian Campbell
2014-09-29 12:18 ` Julien Grall
2014-09-29 12:35 ` Ian Campbell
2014-09-29 12:42 ` Julien Grall
2014-09-18 12:13 ` [RFC PATCH] xen/arm: Restricted access to IFSR32_EL2 and FPEXC32_EL2 vijay.kilari
2014-09-23 16:32 ` Ian Campbell
2014-09-24 9:00 ` Ian Campbell
2014-09-18 12:13 ` vijay.kilari [this message]
2014-09-23 16:33 ` [RFC PATCH] xen/arm: remove check for generic timer support for arm64 Ian Campbell
2014-09-24 9:00 ` Ian Campbell
2014-09-23 16:19 ` [PATCH] xen/arm: Use REG_RANK_INDEX macro Ian Campbell
2014-09-23 16:45 ` Stefano Stabellini
2014-09-24 8:59 ` Ian Campbell
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