From 933abb9c238726c3f2862affd0d46b043a22c3e0 Mon Sep 17 00:00:00 2001 From: Suraj Jitindar Singh Date: Mon, 30 Mar 2020 11:49:40 +0200 Subject: [PATCH] target/ppc: Enforce that the root page directory size must be at least 5 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit According to the ISA the root page directory size of a radix tree for either process- or partition-scoped translation must be >= 5. Thus add this to the list of conditions checked when validating the partition table entry in validate_pate(); Signed-off-by: Suraj Jitindar Singh Reviewed-by: David Gibson Signed-off-by: Cédric Le Goater Message-Id: <20200330094946.24678-2-clg@kaod.org> Reviewed-by: Greg Kurz Signed-off-by: David Gibson --- target/ppc/mmu-radix64.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/target/ppc/mmu-radix64.c b/target/ppc/mmu-radix64.c index 224e646c50..9967857058 100644 --- a/target/ppc/mmu-radix64.c +++ b/target/ppc/mmu-radix64.c @@ -212,6 +212,9 @@ static bool validate_pate(PowerPCCPU *cpu, uint64_t lpid, ppc_v3_pate_t *pate) if (lpid == 0 && !msr_hv) { return false; } + if ((pate->dw0 & PATE1_R_PRTS) < 5) { + return false; + } /* More checks ... */ return true; }