On Sat, Apr 21, 2012 at 05:28:36PM -0400, Xin Tong wrote:
On Mon, Apr 16, 2012 at 10:51 PM, 陳韋任 che...@iis.sinica.edu.tw wrote:
what does the inline sequence look like ? what kind of things (other
than refill tlb) performed in callout but not the inlined sequence ?
What do you mean by
On Mon, Apr 16, 2012 at 10:51 PM, 陳韋任 che...@iis.sinica.edu.tw wrote:
what does the inline sequence look like ? what kind of things (other
than refill tlb) performed in callout but not the inlined sequence ?
What do you mean by the inline sequence, the host binary? If so,
---
0xe86c8
On Wed, Apr 18, 2012 at 02:49, 陳韋任 che...@iis.sinica.edu.tw wrote:
On Tue, Apr 17, 2012 at 08:17:09PM +, Blue Swirl wrote:
On Tue, Apr 17, 2012 at 05:40, Xin Tong xerox.time.t...@gmail.com wrote:
that is possible. but if that is the case, why not split the tlb
walking and the tlb fill ?
what does the inline sequence look like ? what kind of things (other
than refill tlb) performed in callout but not the inlined sequence ?
What do you mean by the inline sequence, the host binary? If so,
---
0xe86c8
mov_i32 tmp2,edi
qemu_ld8u tmp0,tmp2,$0x0
ext8u_i32 tmp12,tmp0
If TLB miss, it will call something like __ldb_mmu (b). __ldb_mmu will try
to
walk guest page table, then fill TLB entry if page table hit, or raise a
guest
page fault exception if page table miss.
Yep. that is what i was taught. the sequence of code above is an
inlined assembly
On Tue, Apr 17, 2012 at 05:40, Xin Tong xerox.time.t...@gmail.com wrote:
that is possible. but if that is the case, why not split the tlb
walking and the tlb fill ? can anyone please confirm ?
I sent a patch earlier that did something like that but it wasn't very
successful:
On Tue, Apr 17, 2012 at 08:17:09PM +, Blue Swirl wrote:
On Tue, Apr 17, 2012 at 05:40, Xin Tong xerox.time.t...@gmail.com wrote:
that is possible. but if that is the case, why not split the tlb
walking and the tlb fill ? can anyone please confirm ?
I sent a patch earlier that did
it seems qemu has an inlined sequence to walk the tlb. if that fails,
it does a call out.
tcg_out_tlb_load(s, addrlo_idx, mem_index, s_bits, args,
label_ptr, offsetof(CPUTLBEntry, addr_write));
/* TLB Hit. */
tcg_out_qemu_st_direct(s, data_reg, data_reg2,
On Mon, Apr 16, 2012 at 10:51 PM, 陳韋任 che...@iis.sinica.edu.tw wrote:
what does the inline sequence look like ? what kind of things (other
than refill tlb) performed in callout but not the inlined sequence ?
What do you mean by the inline sequence, the host binary? If so,
---
0xe86c8
that is possible. but if that is the case, why not split the tlb
walking and the tlb fill ? can anyone please confirm ?
Xin
2012/4/16 陳韋任 che...@iis.sinica.edu.tw:
If TLB miss, it will call something like __ldb_mmu (b). __ldb_mmu will try
to
walk guest page table, then fill TLB entry if
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