linux-kernel - [RFC PATCH v2 04/10] riscv: Add fixmap indices for GHES IRQ and SSE contexts

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20251029112649.3811657-5-hchauhan@ventanamicro.com>
Date: Wed, 29 Oct 2025 16:56:42 +0530
From: Himanshu Chauhan <hchauhan@...tanamicro.com>
To: linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org,
	linux-efi@...r.kernel.org,
	acpica-devel@...ts.linux.dev
Cc: paul.walmsley@...ive.com,
	palmer@...belt.com,
	lenb@...nel.org,
	james.morse@....com,
	tony.luck@...el.com,
	ardb@...nel.org,
	conor@...nel.org,
	cleger@...osinc.com,
	robert.moore@...el.com,
	sunilvl@...tanamicro.com,
	apatel@...tanamicro.com,
	Himanshu Chauhan <hchauhan@...tanamicro.com>
Subject: [RFC PATCH v2 04/10] riscv: Add fixmap indices for GHES IRQ and SSE contexts

GHES error handling requires fixmap entries for IRQ notifications.
Add fixmap indices for IRQ, SSE Low and High priority notifications.

Signed-off-by: Himanshu Chauhan <hchauhan@...tanamicro.com>
---
 arch/riscv/include/asm/fixmap.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/riscv/include/asm/fixmap.h b/arch/riscv/include/asm/fixmap.h
index 0a55099bb734..e874fd952286 100644
--- a/arch/riscv/include/asm/fixmap.h
+++ b/arch/riscv/include/asm/fixmap.h
@@ -38,6 +38,14 @@ enum fixed_addresses {
 	FIX_TEXT_POKE0,
 	FIX_EARLYCON_MEM_BASE,
 
+#ifdef CONFIG_ACPI_APEI_GHES
+	/* Used for GHES mapping from assorted contexts */
+	FIX_APEI_GHES_IRQ,
+#ifdef CONFIG_RISCV_SBI_SSE
+	FIX_APEI_GHES_SSE_LOW_PRIORITY,
+	FIX_APEI_GHES_SSE_HIGH_PRIORITY,
+#endif /* CONFIG_RISCV_SBI_SSE */
+#endif /* CONFIG_ACPI_APEI_GHES */
 	__end_of_permanent_fixed_addresses,
 	/*
 	 * Temporary boot-time mappings, used by early_ioremap(),
-- 
2.43.0