bwlp/qemu.git/target/ppc/mmu-hash64.h, branch spice_video_codecs

target/ppc: fix Hash64 MMU update of PTE bit R

2021-11-29T20:00:08+00:00

When updating the R bit of a PTE, the Hash64 MMU was using a wrong byte offset, causing the first byte of the adjacent PTE to be corrupted. This caused a panic when booting FreeBSD, using the Hash MMU. Fixes: a2dd4e83e76b ("ppc/hash64: Rework R and C bit updates") Signed-off-by: Leandro Lupori Signed-off-by: Cédric Le Goater

target/ppc: changed ppc_hash64_xlate to use mmu_idx

2021-07-09T00:38:19+00:00

Changed hash64 address translation to use the supplied mmu_idx instead of using the one stored in the msr, for parity purposes (other book3s MMUs already use it). Signed-off-by: Bruno Larsen (billionai) Reviewed-by: Richard Henderson Message-Id: <20210628133610.1143-4-bruno.larsen@eldorado.org.br> Signed-off-by: David Gibson

target/ppc: Introduce ppc_xlate

2021-07-09T00:38:19+00:00

Create one common dispatch for all of the ppc_*_xlate functions. Use ppc64_v3_radix to directly dispatch between ppc_radix64_xlate and ppc_hash64_xlate. Remove the separate *_handle_mmu_fault and *_get_phys_page_debug functions, using common code for ppc_cpu_tlb_fill and ppc_cpu_get_phys_page_debug. Signed-off-by: Richard Henderson Message-Id: <20210621125115.67717-9-bruno.larsen@eldorado.org.br> Signed-off-by: David Gibson

target/ppc: Use MMUAccessType with *_handle_mmu_fault

2021-07-09T00:38:18+00:00

These changes were waiting until we didn't need to match the function type of PowerPCCPUClass.handle_mmu_fault. Signed-off-by: Richard Henderson Message-Id: <20210621125115.67717-3-bruno.larsen@eldorado.org.br> Reviewed-by: Greg Kurz Signed-off-by: David Gibson

target/ppc: moved ppc_store_lpcr to misc_helper.c

2021-05-19T00:30:28+00:00

Moved the function ppc_store from mmu-hash64.c to misc_helper.c and the prototype from mmu-hash64.h to cpu.h as it is a more appropriate place, but it will have to have its implementation moved to a new file as misc_helper.c should not be compiled in a !TCG environment. Signed-off-by: Lucas Mateus Castro (alqotel) Message-Id: <20210506163941.106984-4-lucas.araujo@eldorado.org.br> Signed-off-by: David Gibson

target/ppc: moved function out of mmu-hash64

2021-05-19T00:30:28+00:00

The function ppc_hash64_filter_pagesizes has been moved from a function with prototype in mmu-hash64.h and implemented in mmu-hash64.c to a static function in hw/ppc/spapr_caps.c as it's only used in that file. Signed-off-by: Lucas Mateus Castro (alqotel) Message-Id: <20210506163941.106984-3-lucas.araujo@eldorado.org.br> Signed-off-by: David Gibson

ppc/hash64: Rework R and C bit updates

2019-04-26T01:37:57+00:00

With MT-TCG, we are now running translation in a racy way, thus we need to mimic hardware when it comes to updating the R and C bits, by doing byte stores. The current "store_hpte" abstraction is ill suited for this, we replace it with two separate callbacks for setting R and C. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Cédric Le Goater Message-Id: <20190411080004.8690-4-clg@kaod.org> Signed-off-by: David Gibson

target: Clean up how the dump_mmu() print

2019-04-18T20:18:59+00:00

The various dump_mmu() take an fprintf()-like callback and a FILE * to pass to it, and so do their helper functions. Passing around callback and argument is rather tiresome. Most dump_mmu() are called only by the target's hmp_info_tlb(). These all pass monitor_printf() cast to fprintf_function and the current monitor cast to FILE *. SPARC's dump_mmu() gets also called from target/sparc/ldst_helper.c a few times #ifdef DEBUG_MMU. These calls pass fprintf() and stdout. The type-punning is technically undefined behaviour, but works in practice. Clean up: drop the callback, and call qemu_printf() instead. Signed-off-by: Markus Armbruster Reviewed-by: Dr. David Alan Gilbert Message-Id: <20190417191805.28198-11-armbru@redhat.com>

target/ppc: Support for POWER9 native hash

2019-02-25T22:21:25+00:00

(Might need more patch splitting) Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Cédric Le Goater Message-Id: <20190215170029.15641-12-clg@kaod.org> [dwg: Hack to fix compile with some earlier include tweaks of mine] Signed-off-by: David Gibson

target/ppc: Add basic support for "new format" HPTE as found on POWER9

2019-02-25T22:21:25+00:00

POWER9 (arch v3) slightly changes the HPTE format. The B bits move from the first to the second half of the HPTE, and the AVPN/ARPN are slightly shorter. However, under SPAPR, the hypercalls still take the old format (and probably will for the foreseable future). The simplest way to support this is thus to convert the HPTEs from new to old format when reading them if the MMU model is v3 and there is no virtual hypervisor, leaving the rest of the code unchanged. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Cédric Le Goater Message-Id: <20190215170029.15641-8-clg@kaod.org> [dwg: Moved function to .c since there was no real need for it in the .h] Signed-off-by: David Gibson