Merge 6.9-rc5 into tty-next

We want the tty fixes in here as well, and it resolves a merge conflict
in:
	drivers/tty/serial/serial_core.c
as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 13 insertions, 12 deletions

diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index 33228c1c8980f..ac6754a85f350 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -3232,28 +3232,29 @@ static void iommu_snp_enable(void)
 		return;
 	/*
 	 * The SNP support requires that IOMMU must be enabled, and is
-	 * not configured in the passthrough mode.
+	 * configured with V1 page table (DTE[Mode] = 0 is not supported).
 	 */
 	if (no_iommu || iommu_default_passthrough()) {
-		pr_err("SNP: IOMMU disabled or configured in passthrough mode, SNP cannot be supported.\n");
-		cc_platform_clear(CC_ATTR_HOST_SEV_SNP);
-		return;
+		pr_warn("SNP: IOMMU disabled or configured in passthrough mode, SNP cannot be supported.\n");
+		goto disable_snp;
+	}
+
+	if (amd_iommu_pgtable != AMD_IOMMU_V1) {
+		pr_warn("SNP: IOMMU is configured with V2 page table mode, SNP cannot be supported.\n");
+		goto disable_snp;
 	}
 
 	amd_iommu_snp_en = check_feature(FEATURE_SNP);
 	if (!amd_iommu_snp_en) {
-		pr_err("SNP: IOMMU SNP feature not enabled, SNP cannot be supported.\n");
-		cc_platform_clear(CC_ATTR_HOST_SEV_SNP);
-		return;
+		pr_warn("SNP: IOMMU SNP feature not enabled, SNP cannot be supported.\n");
+		goto disable_snp;
 	}
 
 	pr_info("IOMMU SNP support enabled.\n");
+	return;
 
-	/* Enforce IOMMU v1 pagetable when SNP is enabled. */
-	if (amd_iommu_pgtable != AMD_IOMMU_V1) {
-		pr_warn("Forcing use of AMD IOMMU v1 page table due to SNP.\n");
-		amd_iommu_pgtable = AMD_IOMMU_V1;
-	}
+disable_snp:
+	cc_platform_clear(CC_ATTR_HOST_SEV_SNP);
 #endif
 }