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From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Subject: [PULL 06/11] hpet: ignore high bits of comparator in 32-bit mode
Date: Tue, 23 Jul 2024 16:15:24 +0200	[thread overview]
Message-ID: <20240723141529.551737-7-pbonzini@redhat.com> (raw)
In-Reply-To: <20240723141529.551737-1-pbonzini@redhat.com>

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/timer/hpet.c       | 4 ++++
 hw/timer/trace-events | 1 +
 2 files changed, 5 insertions(+)

diff --git a/hw/timer/hpet.c b/hw/timer/hpet.c
index 58073df02b5..bbb1e5f0897 100644
--- a/hw/timer/hpet.c
+++ b/hw/timer/hpet.c
@@ -585,6 +585,10 @@ static void hpet_ram_write(void *opaque, hwaddr addr,
             }
             break;
         case HPET_TN_CMP + 4: // comparator register high order
+            if (timer->config & HPET_TN_32BIT) {
+                trace_hpet_ram_write_invalid_tn_cmp();
+                break;
+            }
             trace_hpet_ram_write_tn_cmp(4);
             if (!timer_is_periodic(timer)
                 || (timer->config & HPET_TN_SETVAL)) {
diff --git a/hw/timer/trace-events b/hw/timer/trace-events
index de769f4b716..a5fafbc6796 100644
--- a/hw/timer/trace-events
+++ b/hw/timer/trace-events
@@ -111,6 +111,7 @@ hpet_ram_write_timer_id(uint64_t timer_id) "hpet_ram_writel timer_id = 0x%" PRIx
 hpet_ram_write_tn_cfg(void) "hpet_ram_writel HPET_TN_CFG"
 hpet_ram_write_invalid_tn_cfg(uint8_t reg_off) "invalid HPET_TN_CFG + %" PRIu8 " write"
 hpet_ram_write_tn_cmp(uint8_t reg_off) "hpet_ram_writel HPET_TN_CMP + %" PRIu8
+hpet_ram_write_invalid_tn_cmp(void) "invalid HPET_TN_CMP + 4 write"
 hpet_ram_write_invalid(void) "invalid hpet_ram_writel"
 hpet_ram_write_counter_write_while_enabled(void) "Writing counter while HPET enabled!"
 hpet_ram_write_counter_written(uint8_t reg_off, uint64_t value, uint64_t counter) "HPET counter + %" PRIu8 "written. crt = 0x%" PRIx64 " -> 0x%" PRIx64
-- 
2.45.2



  parent reply	other threads:[~2024-07-23 14:16 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-23 14:15 [PULL 00/11] target/i386, HPET changes for QEMU 9.1 soft freeze Paolo Bonzini
2024-07-23 14:15 ` [PULL 01/11] target/i386: do not crash if microvm guest uses SGX CPUID leaves Paolo Bonzini
2024-07-23 14:15 ` [PULL 02/11] qio: add support for SO_PEERCRED for socket channel Paolo Bonzini
2024-07-23 14:15 ` [PULL 03/11] tools: build qemu-vmsr-helper Paolo Bonzini
2024-07-25 10:28   ` Peter Maydell
2024-07-25 10:30     ` Paolo Bonzini
2024-07-23 14:15 ` [PULL 04/11] Add support for RAPL MSRs in KVM/Qemu Paolo Bonzini
2024-07-25 10:25   ` Peter Maydell
2024-07-23 14:15 ` [PULL 05/11] hpet: fix and cleanup persistence of interrupt status Paolo Bonzini
2025-03-19 15:28   ` Fiona Ebner
2025-03-19 15:30     ` Paolo Bonzini
2025-03-19 15:47       ` Fiona Ebner
2025-03-19 15:51         ` Paolo Bonzini
2025-03-19 15:56           ` Fiona Ebner
2024-07-23 14:15 ` Paolo Bonzini [this message]
2024-07-23 14:15 ` [PULL 07/11] hpet: remove unnecessary variable "index" Paolo Bonzini
2024-07-23 14:15 ` [PULL 08/11] hpet: place read-only bits directly in "new_val" Paolo Bonzini
2024-07-23 14:15 ` [PULL 09/11] hpet: accept 64-bit reads and writes Paolo Bonzini
2024-07-23 14:15 ` [PULL 10/11] hpet: store full 64-bit target value of the counter Paolo Bonzini
2024-07-23 14:15 ` [PULL 11/11] hpet: avoid timer storms on periodic timers Paolo Bonzini
2024-07-24  2:58 ` [PULL 00/11] target/i386, HPET changes for QEMU 9.1 soft freeze Richard Henderson

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