From: Naman Jain <namjain@linux.microsoft.com>
To: "K . Y . Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
Long Li <longli@microsoft.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Thomas Gleixner <tglx@kernel.org>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H . Peter Anvin" <hpa@zytor.com>,
Arnd Bergmann <arnd@arndb.de>, Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>,
Michael Kelley <mhklinux@outlook.com>
Cc: Marc Zyngier <maz@kernel.org>,
Timothy Hayes <timothy.hayes@arm.com>,
Lorenzo Pieralisi <lpieralisi@kernel.org>,
Sascha Bischoff <sascha.bischoff@arm.com>,
mrigendrachaubey <mrigendra.chaubey@gmail.com>,
Naman Jain <namjain@linux.microsoft.com>,
linux-hyperv@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
linux-riscv@lists.infradead.org, vdso@mailbox.org,
ssengar@linux.microsoft.com
Subject: [PATCH v2 10/15] arm64: hyperv: Add hv_vtl_configure_reg_page() stub
Date: Thu, 23 Apr 2026 12:42:00 +0000 [thread overview]
Message-ID: <20260423124206.2410879-11-namjain@linux.microsoft.com> (raw)
In-Reply-To: <20260423124206.2410879-1-namjain@linux.microsoft.com>
ARM64 does not support the register page overlay, so provide a stub
that returns false. This pairs with the preceding commit that moved
hv_vtl_configure_reg_page() out of common code into architecture-
specific files.
Signed-off-by: Naman Jain <namjain@linux.microsoft.com>
---
arch/arm64/hyperv/hv_vtl.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm64/hyperv/hv_vtl.c b/arch/arm64/hyperv/hv_vtl.c
index 59cbeb74e7b9..e07f6a865350 100644
--- a/arch/arm64/hyperv/hv_vtl.c
+++ b/arch/arm64/hyperv/hv_vtl.c
@@ -156,3 +156,10 @@ void mshv_vtl_return_call(struct mshv_vtl_cpu_context *vtl0)
kernel_neon_end(&fpsimd_state);
}
EXPORT_SYMBOL(mshv_vtl_return_call);
+
+bool hv_vtl_configure_reg_page(struct mshv_vtl_per_cpu *per_cpu)
+{
+ pr_debug("Register page not supported on ARM64\n");
+ return false;
+}
+EXPORT_SYMBOL_GPL(hv_vtl_configure_reg_page);
--
2.43.0
next prev parent reply other threads:[~2026-04-23 12:43 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-23 12:41 [PATCH v2 00/15] Add arm64 support in MSHV_VTL Naman Jain
2026-04-23 12:41 ` [PATCH v2 01/15] arm64: smp: Export arch_smp_send_reschedule for mshv_vtl module Naman Jain
2026-04-23 12:41 ` [PATCH v2 02/15] Drivers: hv: Move hv_vp_assist_page to common files Naman Jain
2026-04-23 12:41 ` [PATCH v2 03/15] Drivers: hv: Move vmbus_handler to common code Naman Jain
2026-04-23 12:41 ` [PATCH v2 04/15] mshv_vtl: Refactor the driver for ARM64 support to be added Naman Jain
2026-04-23 12:41 ` [PATCH v2 05/15] Drivers: hv: Export vmbus_interrupt for mshv_vtl module Naman Jain
2026-04-23 12:41 ` [PATCH v2 06/15] mshv_vtl: Make sint vector architecture neutral Naman Jain
2026-04-23 12:41 ` [PATCH v2 07/15] arm64: hyperv: Add support for mshv_vtl_return_call Naman Jain
2026-04-23 13:56 ` Mark Rutland
2026-04-23 14:00 ` Marc Zyngier
2026-04-23 12:41 ` [PATCH v2 08/15] Drivers: hv: Move hv_call_(get|set)_vp_registers() declarations Naman Jain
2026-04-23 12:41 ` [PATCH v2 09/15] Drivers: hv: mshv_vtl: Move hv_vtl_configure_reg_page() to x86 Naman Jain
2026-04-23 12:42 ` Naman Jain [this message]
2026-04-23 12:42 ` [PATCH v2 11/15] mshv_vtl: Let userspace do VSM configuration Naman Jain
2026-04-23 12:42 ` [PATCH v2 12/15] mshv_vtl: Move VSM code page offset logic to x86 files Naman Jain
2026-04-23 12:42 ` [PATCH v2 13/15] mshv_vtl: Add remaining support for arm64 Naman Jain
2026-04-23 12:42 ` [PATCH v2 14/15] Drivers: hv: Add 4K page dependency in MSHV_VTL Naman Jain
2026-04-23 12:42 ` [PATCH v2 15/15] Drivers: hv: Add ARM64 support for MSHV_VTL in Kconfig Naman Jain
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