OpenE2K/qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

target/sparc: remove MemoryRegionSection check code from sparc_cpu_get_phys_page_debug()

Browse Source 
This code is preventing the MMU debug code from displaying virtual
mappings of IO devices (anything that is not located in the RAM).

Before this patch, Qemu would output 0xffffffffffffffff (-1) as the
physical address corresponding to an IO device virtual address.

With this patch the intended physical address is displayed.

Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
This commit is contained in:
Jean-Christophe Dubois 2017-11-22 07:32:50 +01:00 committed by Mark Cave-Ayland
parent 3cee4db661
commit 7e450a8f50
1 changed files with 0 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
target/sparc/mmu_helper.c
View File

@ -857,18 +857,12 @@ hwaddr sparc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
CPUSPARCState *env = &cpu->env;
hwaddr phys_addr;
int mmu_idx = cpu_mmu_index(env, false);
MemoryRegionSection section;
if (cpu_sparc_get_phys_page(env, &phys_addr, addr, 2, mmu_idx) != 0) {
if (cpu_sparc_get_phys_page(env, &phys_addr, addr, 0, mmu_idx) != 0) {
return -1;
}
}
section = memory_region_find(get_system_memory(), phys_addr, 1);
memory_region_unref(section.mr);
if (!int128_nz(section.size)) {
return -1;
}
return phys_addr;
}
#endif