From: Kameron Carr <kameroncarr@linux.microsoft.com>
To: decui@microsoft.com, haiyangz@microsoft.com,
mhklinux@outlook.com, wei.liu@kernel.org
Cc: arnd@arndb.de, catalin.marinas@arm.com,
linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org,
lpieralisi@kernel.org, mark.rutland@arm.com,
sudeep.holla@kernel.org, thuth@redhat.com, will@kernel.org
Subject: [PATCH v6 6/6] arm64: hyperv: Implement hv_is_isolation_supported() for CCA Realms
Date: Fri, 30 Oct 2026 17:14:12 -0700 [thread overview]
Message-ID: <20261031001412.4150488-7-kameroncarr@linux.microsoft.com> (raw)
In-Reply-To: <20261031001412.4150488-1-kameroncarr@linux.microsoft.com>
Provide an arm64 implementation of hv_is_isolation_supported() that
overrides the __weak default in drivers/hv/hv_common.c.
The implementation deliberately does not depend on
hv_is_hyperv_initialized() because hv_common_init() consults
hv_is_isolation_supported() before hyperv_initialized is set.
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Signed-off-by: Kameron Carr <kameroncarr@linux.microsoft.com>
---
arch/arm64/hyperv/mshyperv.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/hyperv/mshyperv.c b/arch/arm64/hyperv/mshyperv.c
index da6c3aa0..8a2c446 100644
--- a/arch/arm64/hyperv/mshyperv.c
+++ b/arch/arm64/hyperv/mshyperv.c
@@ -187,3 +187,8 @@ bool hv_isolation_type_cca(void)
{
return is_realm_world();
}
+
+bool hv_is_isolation_supported(void)
+{
+ return is_realm_world();
+}
--
2.45.4
prev parent reply other threads:[~2026-10-31 0:14 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-31 0:14 [PATCH v6 0/6] arm64: hyperv: Add Realm support for Hyper-V Kameron Carr
2026-10-31 0:14 ` [PATCH v6 1/6] arm64: rsi: Add RSI host call structure and helper function Kameron Carr
2026-10-31 4:51 ` Dexuan Cui
2026-10-31 0:14 ` [PATCH v6 2/6] arm64: hyperv: Detect Hyper-V via RSI host call in CCA Realms Kameron Carr
2026-10-31 0:14 ` [PATCH v6 3/6] arm64: hyperv: Add per-CPU RSI host call infrastructure for " Kameron Carr
2026-10-31 0:14 ` [PATCH v6 4/6] Drivers: hv: Mark shared memory as decrypted " Kameron Carr
2026-10-31 0:14 ` [PATCH v6 5/6] arm64: hyperv: Route hypercalls through RSI host call in " Kameron Carr
2026-10-31 0:14 ` Kameron Carr [this message]
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