On 15/05/2020 16:43, Alex Bennée wrote: > From: Richard Henderson <richard.hender...@linaro.org> > > We cannot at present limit a 64-bit guest to a virtual address > space smaller than the host. It will mostly work to ignore this > limitation, except if the guest uses high bits of the address > space for tags. But it will certainly work better, as presently > we can wind up failing to allocate the guest stack. > > Widen our user-only page tree to the host or abi pointer width. > Remove the workaround for this problem from target/alpha. > Always validate guest addresses vs reserved_va, as there we > control allocation ourselves. > > Signed-off-by: Richard Henderson <richard.hender...@linaro.org> > Signed-off-by: Alex Bennée <alex.ben...@linaro.org> > > Message-Id: <20200513175134.19619-7-alex.ben...@linaro.org> >
This patch breaks a test case in LTP with 64bit targets on x86_64 host: sudo linux-user/mips64el-linux-user/qemu-mips64el \ -L chroot/mips64el/stretch/ \ chroot/mips64el/stretch/opt/ltp/testcases/bin/mmap15 qemu-mips64el: accel/tcg/translate-all.c:2533: page_set_flags: Assertion `start < end' failed. qemu:handle_cpu_signal received signal outside vCPU context @ pc=0x7f0015f6e7cb Could you have a look? Thanks, Laurent
