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[PATCH v2 3/6] target/hppa: Report and clear BTLBs via fw_cfg at startup
From: |
deller |
Subject: |
[PATCH v2 3/6] target/hppa: Report and clear BTLBs via fw_cfg at startup |
Date: |
Fri, 15 Sep 2023 17:38:38 +0200 |
From: Helge Deller <deller@gmx.de>
Report the new number of TLB entries (without BTLBs) to the
guest and drop reporting of BTLB entries which weren't used at all.
Clear all BTLB and TLB entries at machine reset.
Signed-off-by: Helge Deller <deller@gmx.de>
---
hw/hppa/machine.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/hw/hppa/machine.c b/hw/hppa/machine.c
index 866e11d208..cf28cb9586 100644
--- a/hw/hppa/machine.c
+++ b/hw/hppa/machine.c
@@ -133,14 +133,10 @@ static FWCfgState *create_fw_cfg(MachineState *ms)
fw_cfg_add_file(fw_cfg, "/etc/firmware-min-version",
g_memdup(&val, sizeof(val)), sizeof(val));
- val = cpu_to_le64(HPPA_TLB_ENTRIES);
+ val = cpu_to_le64(HPPA_TLB_ENTRIES - HPPA_BTLB_ENTRIES);
fw_cfg_add_file(fw_cfg, "/etc/cpu/tlb_entries",
g_memdup(&val, sizeof(val)), sizeof(val));
- val = cpu_to_le64(HPPA_BTLB_ENTRIES);
- fw_cfg_add_file(fw_cfg, "/etc/cpu/btlb_entries",
- g_memdup(&val, sizeof(val)), sizeof(val));
-
val = cpu_to_le64(HPA_POWER_BUTTON);
fw_cfg_add_file(fw_cfg, "/etc/power-button-addr",
g_memdup(&val, sizeof(val)), sizeof(val));
@@ -433,6 +429,10 @@ static void hppa_machine_reset(MachineState *ms,
ShutdownCause reason)
cs->exception_index = -1;
cs->halted = 0;
+
+ /* clear any existing TLB and BTLB entries */
+ memset(cpu[i]->env.tlb, 0, sizeof(cpu[i]->env.tlb));
+ cpu[i]->env.tlb_last = HPPA_BTLB_ENTRIES;
}
/* already initialized by machine_hppa_init()? */
--
2.41.0
- [PATCH v2 0/6] Add Block-TLB support for hppa target, deller, 2023/09/15
- [PATCH v2 2/6] target/hppa: Allow up to 16 BTLB entries, deller, 2023/09/15
- [PATCH v2 3/6] target/hppa: Report and clear BTLBs via fw_cfg at startup,
deller <=
- [PATCH v2 5/6] target/hppa: Extract diagnose immediate value, deller, 2023/09/15
- [PATCH v2 4/6] target/hppa: Add BTLB support to hppa TLB functions, deller, 2023/09/15
- [PATCH v2 6/6] target/hppa: Wire up diag instruction to support BTLB, deller, 2023/09/15
- [PATCH v2 1/6] target/hppa: Update to SeaBIOS-hppa version 9, deller, 2023/09/15