Commit deb6ed13 authored by Alexander Graf's avatar Alexander Graf
Browse files

PPC: e500: Fix TLB lookup for 32bit CPUs 



When we run 32bit guest CPUs (or 32bit guest code on 64bit CPUs) on
qemu-system-ppc64 the TLB lookup will use the full effective address
as pointer.

However, only the first 32bits are valid when MSR.CM = 0. Check for
that condition.

This makes QEMU boot an e500v2 guest with more than 1G of RAM for me.

Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
parent f2e2bc9c

target-ppc/mmu_helper.c

+5 −0
Original line number Diff line number Diff line
@@ -903,6 +903,11 @@ static int ppcmas_tlb_check(CPUPPCState *env, ppcmas_tlb_t *tlb, 
    target_ulong mask;

    uint32_t tlb_pid;



    if (!msr_cm) {

        /* In 32bit mode we can only address 32bit EAs */

        address = (uint32_t)address;

    }



    /* Check valid flag */

    if (!(tlb->mas1 & MAS1_VALID)) {

        return -1;