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From: | Mark Cave-Ayland |
Subject: | Re: [PATCH v5 00/17] tcg: CPUTLBEntryFull and TARGET_TB_PCREL |
Date: | Thu, 29 Sep 2022 07:53:06 +0100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.13.0 |
On 29/09/2022 03:16, Richard Henderson wrote:
On 9/25/22 03:51, Richard Henderson wrote:Smooshing these two patch sets back together for review bandwidth. I hope to make this the next tcg-next pull. There are three from the first half, tlbentryfull, which are new. These are following a hallway conversation with Peter about bits in MemTxAttrs that are not actually related to memory transactions, and infrastructure to address a to-do in an Arm patch set. There are a few patches from the second half, pcrel, that have not been reviewed. 07-target-sparc-Use-tlb_set_page_full.patch 08-accel-tcg-Move-byte_swap-from-MemTxAttrs-to-CPUTL.patch 09-accel-tcg-Add-force_aligned-to-CPUTLBEntryFull.patch 10-accel-tcg-Remove-PageDesc-code_bitmap.patch 13-accel-tcg-Do-not-align-tb-page_addr-0.patch 15-accel-tcg-Introduce-tb_pc-and-tb_pc_log.patch 16-accel-tcg-Introduce-TARGET_TB_PCREL.patchFWIW, the target/sparc patch fails (the peril of insufficiently tested airport updates), so I'm going to drop 7+8 until I have time to investigate. I'm also going to drop patch 9 for now, and present it alongside the Arm patch that will use it.
If it helps, the test case that exercises the IE (Invert Endian) page bit in target/sparc is Milax (OpenSolaris) which uses it to map PCI devices. Grab a suitable copy of milax032sparc.iso and test with:
qemu-system-sparc64 -m 256 -cdrom milax032sparc.iso -nographic -boot dYou should see the IE pages accessed at the point where it starts poking the CDROM device, and timeouts if it isn't working.
ATB, Mark.
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