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* [PATCH for-6.0] x86: acpi: use offset instead of pointer when using build_header()
@ 2021-04-13 11:14 Igor Mammedov
  2021-04-13 12:14 ` Michael S. Tsirkin
  0 siblings, 1 reply; 6+ messages in thread
From: Igor Mammedov @ 2021-04-13 11:14 UTC (permalink / raw)
  To: qemu-devel; +Cc: peter.maydell, drjones, mst, pbonzini, zhaoshenglong

Do the same as in commit
 (4d027afeb3a97 Virt: ACPI: fix qemu assert due to re-assigned table data address)
for remaining tables that happen to use saved at
the beginning pointer to build header to avoid assert
when table_data is relocated due to implicit re-size.

Reported-in: https://bugs.launchpad.net/bugs/1923497
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
PS:
 I have build_header() refactoring patch that requires offset
 instead of pointer, to make it harder to misuse but it's
 a bit intrusive for last minute fixes. So here goes simplified
 variant, and I'll post refactoring patch for 6.1. later.
---
 hw/acpi/aml-build.c  | 15 +++++++++------
 hw/i386/acpi-build.c |  8 ++++++--
 2 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index d33ce8954a..f0035d2b4a 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -1830,6 +1830,7 @@ build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
     int i;
     unsigned rsdt_entries_offset;
     AcpiRsdtDescriptorRev1 *rsdt;
+    int rsdt_start = table_data->len;
     const unsigned table_data_len = (sizeof(uint32_t) * table_offsets->len);
     const unsigned rsdt_entry_size = sizeof(rsdt->table_offset_entry[0]);
     const size_t rsdt_len = sizeof(*rsdt) + table_data_len;
@@ -1846,7 +1847,8 @@ build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
             ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
     }
     build_header(linker, table_data,
-                 (void *)rsdt, "RSDT", rsdt_len, 1, oem_id, oem_table_id);
+                 (void *)(table_data->data + rsdt_start),
+                 "RSDT", rsdt_len, 1, oem_id, oem_table_id);
 }
 
 /* Build xsdt table */
@@ -1857,6 +1859,7 @@ build_xsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
     int i;
     unsigned xsdt_entries_offset;
     AcpiXsdtDescriptorRev2 *xsdt;
+    int xsdt_start = table_data->len;
     const unsigned table_data_len = (sizeof(uint64_t) * table_offsets->len);
     const unsigned xsdt_entry_size = sizeof(xsdt->table_offset_entry[0]);
     const size_t xsdt_len = sizeof(*xsdt) + table_data_len;
@@ -1873,7 +1876,8 @@ build_xsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
             ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
     }
     build_header(linker, table_data,
-                 (void *)xsdt, "XSDT", xsdt_len, 1, oem_id, oem_table_id);
+                 (void *)(table_data->data + xsdt_start),
+                 "XSDT", xsdt_len, 1, oem_id, oem_table_id);
 }
 
 void build_srat_memory(AcpiSratMemoryAffinity *numamem, uint64_t base,
@@ -2053,10 +2057,9 @@ void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
     uint64_t control_area_start_address;
     TPMIf *tpmif = tpm_find();
     uint32_t start_method;
-    void *tpm2_ptr;
 
     tpm2_start = table_data->len;
-    tpm2_ptr = acpi_data_push(table_data, sizeof(AcpiTableHeader));
+    acpi_data_push(table_data, sizeof(AcpiTableHeader));
 
     /* Platform Class */
     build_append_int_noprefix(table_data, TPM2_ACPI_CLASS_CLIENT, 2);
@@ -2095,8 +2098,8 @@ void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
                                    log_addr_offset, 8,
                                    ACPI_BUILD_TPMLOG_FILE, 0);
     build_header(linker, table_data,
-                 tpm2_ptr, "TPM2", table_data->len - tpm2_start, 4, oem_id,
-                 oem_table_id);
+                 (void *)(table_data->data + tpm2_start),
+                 "TPM2", table_data->len - tpm2_start, 4, oem_id, oem_table_id);
 }
 
 Aml *build_crs(PCIHostState *host, CrsRangeSet *range_set, uint32_t io_offset,
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index de98750aef..daaf8f473e 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1816,6 +1816,7 @@ build_hpet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
            const char *oem_table_id)
 {
     Acpi20Hpet *hpet;
+    int hpet_start = table_data->len;
 
     hpet = acpi_data_push(table_data, sizeof(*hpet));
     /* Note timer_block_id value must be kept in sync with value advertised by
@@ -1824,13 +1825,15 @@ build_hpet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
     hpet->timer_block_id = cpu_to_le32(0x8086a201);
     hpet->addr.address = cpu_to_le64(HPET_BASE);
     build_header(linker, table_data,
-                 (void *)hpet, "HPET", sizeof(*hpet), 1, oem_id, oem_table_id);
+                 (void *)(table_data->data + hpet_start),
+                 "HPET", sizeof(*hpet), 1, oem_id, oem_table_id);
 }
 
 static void
 build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
                const char *oem_id, const char *oem_table_id)
 {
+    int tcpa_start = table_data->len;
     Acpi20Tcpa *tcpa = acpi_data_push(table_data, sizeof *tcpa);
     unsigned log_addr_size = sizeof(tcpa->log_area_start_address);
     unsigned log_addr_offset =
@@ -1849,7 +1852,8 @@ build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
         ACPI_BUILD_TPMLOG_FILE, 0);
 
     build_header(linker, table_data,
-                 (void *)tcpa, "TCPA", sizeof(*tcpa), 2, oem_id, oem_table_id);
+                 (void *)(table_data->data + tcpa_start),
+                 "TCPA", sizeof(*tcpa), 2, oem_id, oem_table_id);
 }
 
 #define HOLE_640K_START  (640 * KiB)
-- 
2.27.0



^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH for-6.0] x86: acpi: use offset instead of pointer when using build_header()
  2021-04-13 11:14 [PATCH for-6.0] x86: acpi: use offset instead of pointer when using build_header() Igor Mammedov
@ 2021-04-13 12:14 ` Michael S. Tsirkin
  2021-04-13 13:18   ` Igor Mammedov
  0 siblings, 1 reply; 6+ messages in thread
From: Michael S. Tsirkin @ 2021-04-13 12:14 UTC (permalink / raw)
  To: Igor Mammedov; +Cc: peter.maydell, drjones, pbonzini, qemu-devel, zhaoshenglong

On Tue, Apr 13, 2021 at 07:14:00AM -0400, Igor Mammedov wrote:
> Do the same as in commit
>  (4d027afeb3a97 Virt: ACPI: fix qemu assert due to re-assigned table data address)
> for remaining tables that happen to use saved at
> the beginning pointer to build header to avoid assert
> when table_data is relocated due to implicit re-size.
> 
> Reported-in: https://bugs.launchpad.net/bugs/1923497

Doesn't this fix the bug? If so -
Isn't this Fixes: ?

> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> ---
> PS:
>  I have build_header() refactoring patch that requires offset
>  instead of pointer, to make it harder to misuse but it's
>  a bit intrusive for last minute fixes. So here goes simplified
>  variant, and I'll post refactoring patch for 6.1. later.
> ---
>  hw/acpi/aml-build.c  | 15 +++++++++------
>  hw/i386/acpi-build.c |  8 ++++++--
>  2 files changed, 15 insertions(+), 8 deletions(-)
> 
> diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
> index d33ce8954a..f0035d2b4a 100644
> --- a/hw/acpi/aml-build.c
> +++ b/hw/acpi/aml-build.c
> @@ -1830,6 +1830,7 @@ build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
>      int i;
>      unsigned rsdt_entries_offset;
>      AcpiRsdtDescriptorRev1 *rsdt;
> +    int rsdt_start = table_data->len;
>      const unsigned table_data_len = (sizeof(uint32_t) * table_offsets->len);
>      const unsigned rsdt_entry_size = sizeof(rsdt->table_offset_entry[0]);
>      const size_t rsdt_len = sizeof(*rsdt) + table_data_len;
> @@ -1846,7 +1847,8 @@ build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
>              ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
>      }
>      build_header(linker, table_data,
> -                 (void *)rsdt, "RSDT", rsdt_len, 1, oem_id, oem_table_id);
> +                 (void *)(table_data->data + rsdt_start),
> +                 "RSDT", rsdt_len, 1, oem_id, oem_table_id);
>  }
>  
>  /* Build xsdt table */
> @@ -1857,6 +1859,7 @@ build_xsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
>      int i;
>      unsigned xsdt_entries_offset;
>      AcpiXsdtDescriptorRev2 *xsdt;
> +    int xsdt_start = table_data->len;
>      const unsigned table_data_len = (sizeof(uint64_t) * table_offsets->len);
>      const unsigned xsdt_entry_size = sizeof(xsdt->table_offset_entry[0]);
>      const size_t xsdt_len = sizeof(*xsdt) + table_data_len;
> @@ -1873,7 +1876,8 @@ build_xsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
>              ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
>      }
>      build_header(linker, table_data,
> -                 (void *)xsdt, "XSDT", xsdt_len, 1, oem_id, oem_table_id);
> +                 (void *)(table_data->data + xsdt_start),
> +                 "XSDT", xsdt_len, 1, oem_id, oem_table_id);
>  }
>  
>  void build_srat_memory(AcpiSratMemoryAffinity *numamem, uint64_t base,
> @@ -2053,10 +2057,9 @@ void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
>      uint64_t control_area_start_address;
>      TPMIf *tpmif = tpm_find();
>      uint32_t start_method;
> -    void *tpm2_ptr;
>  
>      tpm2_start = table_data->len;
> -    tpm2_ptr = acpi_data_push(table_data, sizeof(AcpiTableHeader));
> +    acpi_data_push(table_data, sizeof(AcpiTableHeader));
>  
>      /* Platform Class */
>      build_append_int_noprefix(table_data, TPM2_ACPI_CLASS_CLIENT, 2);
> @@ -2095,8 +2098,8 @@ void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
>                                     log_addr_offset, 8,
>                                     ACPI_BUILD_TPMLOG_FILE, 0);
>      build_header(linker, table_data,
> -                 tpm2_ptr, "TPM2", table_data->len - tpm2_start, 4, oem_id,
> -                 oem_table_id);
> +                 (void *)(table_data->data + tpm2_start),
> +                 "TPM2", table_data->len - tpm2_start, 4, oem_id, oem_table_id);
>  }
>  
>  Aml *build_crs(PCIHostState *host, CrsRangeSet *range_set, uint32_t io_offset,
> diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> index de98750aef..daaf8f473e 100644
> --- a/hw/i386/acpi-build.c
> +++ b/hw/i386/acpi-build.c
> @@ -1816,6 +1816,7 @@ build_hpet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
>             const char *oem_table_id)
>  {
>      Acpi20Hpet *hpet;
> +    int hpet_start = table_data->len;
>  
>      hpet = acpi_data_push(table_data, sizeof(*hpet));
>      /* Note timer_block_id value must be kept in sync with value advertised by
> @@ -1824,13 +1825,15 @@ build_hpet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
>      hpet->timer_block_id = cpu_to_le32(0x8086a201);
>      hpet->addr.address = cpu_to_le64(HPET_BASE);
>      build_header(linker, table_data,
> -                 (void *)hpet, "HPET", sizeof(*hpet), 1, oem_id, oem_table_id);
> +                 (void *)(table_data->data + hpet_start),
> +                 "HPET", sizeof(*hpet), 1, oem_id, oem_table_id);
>  }
>  
>  static void
>  build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
>                 const char *oem_id, const char *oem_table_id)
>  {
> +    int tcpa_start = table_data->len;
>      Acpi20Tcpa *tcpa = acpi_data_push(table_data, sizeof *tcpa);
>      unsigned log_addr_size = sizeof(tcpa->log_area_start_address);
>      unsigned log_addr_offset =
> @@ -1849,7 +1852,8 @@ build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
>          ACPI_BUILD_TPMLOG_FILE, 0);
>  
>      build_header(linker, table_data,
> -                 (void *)tcpa, "TCPA", sizeof(*tcpa), 2, oem_id, oem_table_id);
> +                 (void *)(table_data->data + tcpa_start),
> +                 "TCPA", sizeof(*tcpa), 2, oem_id, oem_table_id);
>  }
>  
>  #define HOLE_640K_START  (640 * KiB)
> -- 
> 2.27.0



^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH for-6.0] x86: acpi: use offset instead of pointer when using build_header()
  2021-04-13 12:14 ` Michael S. Tsirkin
@ 2021-04-13 13:18   ` Igor Mammedov
  2021-04-13 13:53     ` Michael S. Tsirkin
  0 siblings, 1 reply; 6+ messages in thread
From: Igor Mammedov @ 2021-04-13 13:18 UTC (permalink / raw)
  To: Michael S. Tsirkin
  Cc: peter.maydell, drjones, pbonzini, qemu-devel, zhaoshenglong

On Tue, 13 Apr 2021 08:14:56 -0400
"Michael S. Tsirkin" <mst@redhat.com> wrote:

> On Tue, Apr 13, 2021 at 07:14:00AM -0400, Igor Mammedov wrote:
> > Do the same as in commit
> >  (4d027afeb3a97 Virt: ACPI: fix qemu assert due to re-assigned table data address)
> > for remaining tables that happen to use saved at
> > the beginning pointer to build header to avoid assert
> > when table_data is relocated due to implicit re-size.
> > 
> > Reported-in: https://bugs.launchpad.net/bugs/1923497  
> 
> Doesn't this fix the bug? If so -
> Isn't this Fixes: ?
that's buried in history

Fixes: 243bdb79fb0b2ed hw/arm/virt-acpi-build: Generate RSDT table
Fixes: cb51ac2ffe3649e hw/arm/virt: generate 64-bit addressable ACPI objects
Fixes: 4338416064303aa acpi: Move build_tpm2() in the generic part
Fixes: 72c194f7e75cb64 i386: ACPI table generation code from seabios
Fixes: 711b20b479aa96e Add ACPI tables for TPM

 
> > Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> > ---
> > PS:
> >  I have build_header() refactoring patch that requires offset
> >  instead of pointer, to make it harder to misuse but it's
> >  a bit intrusive for last minute fixes. So here goes simplified
> >  variant, and I'll post refactoring patch for 6.1. later.
> > ---
> >  hw/acpi/aml-build.c  | 15 +++++++++------
> >  hw/i386/acpi-build.c |  8 ++++++--
> >  2 files changed, 15 insertions(+), 8 deletions(-)
> > 
> > diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
> > index d33ce8954a..f0035d2b4a 100644
> > --- a/hw/acpi/aml-build.c
> > +++ b/hw/acpi/aml-build.c
> > @@ -1830,6 +1830,7 @@ build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> >      int i;
> >      unsigned rsdt_entries_offset;
> >      AcpiRsdtDescriptorRev1 *rsdt;
> > +    int rsdt_start = table_data->len;
> >      const unsigned table_data_len = (sizeof(uint32_t) * table_offsets->len);
> >      const unsigned rsdt_entry_size = sizeof(rsdt->table_offset_entry[0]);
> >      const size_t rsdt_len = sizeof(*rsdt) + table_data_len;
> > @@ -1846,7 +1847,8 @@ build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> >              ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
> >      }
> >      build_header(linker, table_data,
> > -                 (void *)rsdt, "RSDT", rsdt_len, 1, oem_id, oem_table_id);
> > +                 (void *)(table_data->data + rsdt_start),
> > +                 "RSDT", rsdt_len, 1, oem_id, oem_table_id);
> >  }
> >  
> >  /* Build xsdt table */
> > @@ -1857,6 +1859,7 @@ build_xsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> >      int i;
> >      unsigned xsdt_entries_offset;
> >      AcpiXsdtDescriptorRev2 *xsdt;
> > +    int xsdt_start = table_data->len;
> >      const unsigned table_data_len = (sizeof(uint64_t) * table_offsets->len);
> >      const unsigned xsdt_entry_size = sizeof(xsdt->table_offset_entry[0]);
> >      const size_t xsdt_len = sizeof(*xsdt) + table_data_len;
> > @@ -1873,7 +1876,8 @@ build_xsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> >              ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
> >      }
> >      build_header(linker, table_data,
> > -                 (void *)xsdt, "XSDT", xsdt_len, 1, oem_id, oem_table_id);
> > +                 (void *)(table_data->data + xsdt_start),
> > +                 "XSDT", xsdt_len, 1, oem_id, oem_table_id);
> >  }
> >  
> >  void build_srat_memory(AcpiSratMemoryAffinity *numamem, uint64_t base,
> > @@ -2053,10 +2057,9 @@ void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> >      uint64_t control_area_start_address;
> >      TPMIf *tpmif = tpm_find();
> >      uint32_t start_method;
> > -    void *tpm2_ptr;
> >  
> >      tpm2_start = table_data->len;
> > -    tpm2_ptr = acpi_data_push(table_data, sizeof(AcpiTableHeader));
> > +    acpi_data_push(table_data, sizeof(AcpiTableHeader));
> >  
> >      /* Platform Class */
> >      build_append_int_noprefix(table_data, TPM2_ACPI_CLASS_CLIENT, 2);
> > @@ -2095,8 +2098,8 @@ void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> >                                     log_addr_offset, 8,
> >                                     ACPI_BUILD_TPMLOG_FILE, 0);
> >      build_header(linker, table_data,
> > -                 tpm2_ptr, "TPM2", table_data->len - tpm2_start, 4, oem_id,
> > -                 oem_table_id);
> > +                 (void *)(table_data->data + tpm2_start),
> > +                 "TPM2", table_data->len - tpm2_start, 4, oem_id, oem_table_id);
> >  }
> >  
> >  Aml *build_crs(PCIHostState *host, CrsRangeSet *range_set, uint32_t io_offset,
> > diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> > index de98750aef..daaf8f473e 100644
> > --- a/hw/i386/acpi-build.c
> > +++ b/hw/i386/acpi-build.c
> > @@ -1816,6 +1816,7 @@ build_hpet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
> >             const char *oem_table_id)
> >  {
> >      Acpi20Hpet *hpet;
> > +    int hpet_start = table_data->len;
> >  
> >      hpet = acpi_data_push(table_data, sizeof(*hpet));
> >      /* Note timer_block_id value must be kept in sync with value advertised by
> > @@ -1824,13 +1825,15 @@ build_hpet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
> >      hpet->timer_block_id = cpu_to_le32(0x8086a201);
> >      hpet->addr.address = cpu_to_le64(HPET_BASE);
> >      build_header(linker, table_data,
> > -                 (void *)hpet, "HPET", sizeof(*hpet), 1, oem_id, oem_table_id);
> > +                 (void *)(table_data->data + hpet_start),
> > +                 "HPET", sizeof(*hpet), 1, oem_id, oem_table_id);
> >  }
> >  
> >  static void
> >  build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> >                 const char *oem_id, const char *oem_table_id)
> >  {
> > +    int tcpa_start = table_data->len;
> >      Acpi20Tcpa *tcpa = acpi_data_push(table_data, sizeof *tcpa);
> >      unsigned log_addr_size = sizeof(tcpa->log_area_start_address);
> >      unsigned log_addr_offset =
> > @@ -1849,7 +1852,8 @@ build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> >          ACPI_BUILD_TPMLOG_FILE, 0);
> >  
> >      build_header(linker, table_data,
> > -                 (void *)tcpa, "TCPA", sizeof(*tcpa), 2, oem_id, oem_table_id);
> > +                 (void *)(table_data->data + tcpa_start),
> > +                 "TCPA", sizeof(*tcpa), 2, oem_id, oem_table_id);
> >  }
> >  
> >  #define HOLE_640K_START  (640 * KiB)
> > -- 
> > 2.27.0  
> 



^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH for-6.0] x86: acpi: use offset instead of pointer when using build_header()
  2021-04-13 13:18   ` Igor Mammedov
@ 2021-04-13 13:53     ` Michael S. Tsirkin
  2021-04-13 15:21       ` Igor Mammedov
  0 siblings, 1 reply; 6+ messages in thread
From: Michael S. Tsirkin @ 2021-04-13 13:53 UTC (permalink / raw)
  To: Igor Mammedov; +Cc: peter.maydell, drjones, pbonzini, qemu-devel, zhaoshenglong

On Tue, Apr 13, 2021 at 03:18:16PM +0200, Igor Mammedov wrote:
> On Tue, 13 Apr 2021 08:14:56 -0400
> "Michael S. Tsirkin" <mst@redhat.com> wrote:
> 
> > On Tue, Apr 13, 2021 at 07:14:00AM -0400, Igor Mammedov wrote:
> > > Do the same as in commit
> > >  (4d027afeb3a97 Virt: ACPI: fix qemu assert due to re-assigned table data address)

Format:

commit 4d027afeb3a97 ("Virt: ACPI: fix qemu assert due to re-assigned table data address")

> > > for remaining tables that happen to use saved at
> > > the beginning pointer to build header to avoid assert
> > > when table_data is relocated due to implicit re-size.
> > > 
> > > Reported-in: https://bugs.launchpad.net/bugs/1923497  
> > 
> > Doesn't this fix the bug? If so -
> > Isn't this Fixes: ?
> that's buried in history
> 
> Fixes: 243bdb79fb0b2ed hw/arm/virt-acpi-build: Generate RSDT table
> Fixes: cb51ac2ffe3649e hw/arm/virt: generate 64-bit addressable ACPI objects
> Fixes: 4338416064303aa acpi: Move build_tpm2() in the generic part
> Fixes: 72c194f7e75cb64 i386: ACPI table generation code from seabios
> Fixes: 711b20b479aa96e Add ACPI tables for TPM


I just mean:

    Buglink: https://bugs.launchpad.net/qemu/+bug/1921138

as opposed to Reported.

Also do we CC stable for this?

>  
> > > Signed-off-by: Igor Mammedov <imammedo@redhat.com>


patch itself ok:

Acked-by: Michael S. Tsirkin <mst@redhat.com>

> > > ---
> > > PS:
> > >  I have build_header() refactoring patch that requires offset
> > >  instead of pointer, to make it harder to misuse but it's
> > >  a bit intrusive for last minute fixes. So here goes simplified
> > >  variant, and I'll post refactoring patch for 6.1. later.
> > > ---
> > >  hw/acpi/aml-build.c  | 15 +++++++++------
> > >  hw/i386/acpi-build.c |  8 ++++++--
> > >  2 files changed, 15 insertions(+), 8 deletions(-)
> > > 
> > > diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
> > > index d33ce8954a..f0035d2b4a 100644
> > > --- a/hw/acpi/aml-build.c
> > > +++ b/hw/acpi/aml-build.c
> > > @@ -1830,6 +1830,7 @@ build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> > >      int i;
> > >      unsigned rsdt_entries_offset;
> > >      AcpiRsdtDescriptorRev1 *rsdt;
> > > +    int rsdt_start = table_data->len;
> > >      const unsigned table_data_len = (sizeof(uint32_t) * table_offsets->len);
> > >      const unsigned rsdt_entry_size = sizeof(rsdt->table_offset_entry[0]);
> > >      const size_t rsdt_len = sizeof(*rsdt) + table_data_len;
> > > @@ -1846,7 +1847,8 @@ build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> > >              ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
> > >      }
> > >      build_header(linker, table_data,
> > > -                 (void *)rsdt, "RSDT", rsdt_len, 1, oem_id, oem_table_id);
> > > +                 (void *)(table_data->data + rsdt_start),
> > > +                 "RSDT", rsdt_len, 1, oem_id, oem_table_id);
> > >  }
> > >  
> > >  /* Build xsdt table */
> > > @@ -1857,6 +1859,7 @@ build_xsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> > >      int i;
> > >      unsigned xsdt_entries_offset;
> > >      AcpiXsdtDescriptorRev2 *xsdt;
> > > +    int xsdt_start = table_data->len;
> > >      const unsigned table_data_len = (sizeof(uint64_t) * table_offsets->len);
> > >      const unsigned xsdt_entry_size = sizeof(xsdt->table_offset_entry[0]);
> > >      const size_t xsdt_len = sizeof(*xsdt) + table_data_len;
> > > @@ -1873,7 +1876,8 @@ build_xsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> > >              ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
> > >      }
> > >      build_header(linker, table_data,
> > > -                 (void *)xsdt, "XSDT", xsdt_len, 1, oem_id, oem_table_id);
> > > +                 (void *)(table_data->data + xsdt_start),
> > > +                 "XSDT", xsdt_len, 1, oem_id, oem_table_id);
> > >  }
> > >  
> > >  void build_srat_memory(AcpiSratMemoryAffinity *numamem, uint64_t base,
> > > @@ -2053,10 +2057,9 @@ void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> > >      uint64_t control_area_start_address;
> > >      TPMIf *tpmif = tpm_find();
> > >      uint32_t start_method;
> > > -    void *tpm2_ptr;
> > >  
> > >      tpm2_start = table_data->len;
> > > -    tpm2_ptr = acpi_data_push(table_data, sizeof(AcpiTableHeader));
> > > +    acpi_data_push(table_data, sizeof(AcpiTableHeader));
> > >  
> > >      /* Platform Class */
> > >      build_append_int_noprefix(table_data, TPM2_ACPI_CLASS_CLIENT, 2);
> > > @@ -2095,8 +2098,8 @@ void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> > >                                     log_addr_offset, 8,
> > >                                     ACPI_BUILD_TPMLOG_FILE, 0);
> > >      build_header(linker, table_data,
> > > -                 tpm2_ptr, "TPM2", table_data->len - tpm2_start, 4, oem_id,
> > > -                 oem_table_id);
> > > +                 (void *)(table_data->data + tpm2_start),
> > > +                 "TPM2", table_data->len - tpm2_start, 4, oem_id, oem_table_id);
> > >  }
> > >  
> > >  Aml *build_crs(PCIHostState *host, CrsRangeSet *range_set, uint32_t io_offset,
> > > diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> > > index de98750aef..daaf8f473e 100644
> > > --- a/hw/i386/acpi-build.c
> > > +++ b/hw/i386/acpi-build.c
> > > @@ -1816,6 +1816,7 @@ build_hpet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
> > >             const char *oem_table_id)
> > >  {
> > >      Acpi20Hpet *hpet;
> > > +    int hpet_start = table_data->len;
> > >  
> > >      hpet = acpi_data_push(table_data, sizeof(*hpet));
> > >      /* Note timer_block_id value must be kept in sync with value advertised by
> > > @@ -1824,13 +1825,15 @@ build_hpet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
> > >      hpet->timer_block_id = cpu_to_le32(0x8086a201);
> > >      hpet->addr.address = cpu_to_le64(HPET_BASE);
> > >      build_header(linker, table_data,
> > > -                 (void *)hpet, "HPET", sizeof(*hpet), 1, oem_id, oem_table_id);
> > > +                 (void *)(table_data->data + hpet_start),
> > > +                 "HPET", sizeof(*hpet), 1, oem_id, oem_table_id);
> > >  }
> > >  
> > >  static void
> > >  build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> > >                 const char *oem_id, const char *oem_table_id)
> > >  {
> > > +    int tcpa_start = table_data->len;
> > >      Acpi20Tcpa *tcpa = acpi_data_push(table_data, sizeof *tcpa);
> > >      unsigned log_addr_size = sizeof(tcpa->log_area_start_address);
> > >      unsigned log_addr_offset =
> > > @@ -1849,7 +1852,8 @@ build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> > >          ACPI_BUILD_TPMLOG_FILE, 0);
> > >  
> > >      build_header(linker, table_data,
> > > -                 (void *)tcpa, "TCPA", sizeof(*tcpa), 2, oem_id, oem_table_id);
> > > +                 (void *)(table_data->data + tcpa_start),
> > > +                 "TCPA", sizeof(*tcpa), 2, oem_id, oem_table_id);
> > >  }
> > >  
> > >  #define HOLE_640K_START  (640 * KiB)
> > > -- 
> > > 2.27.0  
> > 



^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH for-6.0] x86: acpi: use offset instead of pointer when using build_header()
  2021-04-13 13:53     ` Michael S. Tsirkin
@ 2021-04-13 15:21       ` Igor Mammedov
  2021-04-13 20:09         ` Michael S. Tsirkin
  0 siblings, 1 reply; 6+ messages in thread
From: Igor Mammedov @ 2021-04-13 15:21 UTC (permalink / raw)
  To: Michael S. Tsirkin
  Cc: peter.maydell, drjones, pbonzini, qemu-devel, zhaoshenglong

On Tue, 13 Apr 2021 09:53:17 -0400
"Michael S. Tsirkin" <mst@redhat.com> wrote:

> On Tue, Apr 13, 2021 at 03:18:16PM +0200, Igor Mammedov wrote:
> > On Tue, 13 Apr 2021 08:14:56 -0400
> > "Michael S. Tsirkin" <mst@redhat.com> wrote:
> >   
> > > On Tue, Apr 13, 2021 at 07:14:00AM -0400, Igor Mammedov wrote:  
> > > > Do the same as in commit
> > > >  (4d027afeb3a97 Virt: ACPI: fix qemu assert due to re-assigned table data address)  
> 
> Format:
> 
> commit 4d027afeb3a97 ("Virt: ACPI: fix qemu assert due to re-assigned table data address")
> 
> > > > for remaining tables that happen to use saved at
> > > > the beginning pointer to build header to avoid assert
> > > > when table_data is relocated due to implicit re-size.
> > > > 
> > > > Reported-in: https://bugs.launchpad.net/bugs/1923497    
> > > 
> > > Doesn't this fix the bug? If so -
> > > Isn't this Fixes: ?  
> > that's buried in history
> > 
> > Fixes: 243bdb79fb0b2ed hw/arm/virt-acpi-build: Generate RSDT table
> > Fixes: cb51ac2ffe3649e hw/arm/virt: generate 64-bit addressable ACPI objects
> > Fixes: 4338416064303aa acpi: Move build_tpm2() in the generic part
> > Fixes: 72c194f7e75cb64 i386: ACPI table generation code from seabios
> > Fixes: 711b20b479aa96e Add ACPI tables for TPM  
> 
> 
> I just mean:
> 
>     Buglink: https://bugs.launchpad.net/qemu/+bug/1921138
> 
> as opposed to Reported.
> 
> Also do we CC stable for this?
Given it's reported on 5.1, it is a good idea to cc stable.

Shall I repost with fixed: "Fixes:..."?

> 
> >    
> > > > Signed-off-by: Igor Mammedov <imammedo@redhat.com>  
> 
> 
> patch itself ok:
> 
> Acked-by: Michael S. Tsirkin <mst@redhat.com>
> 
> > > > ---
> > > > PS:
> > > >  I have build_header() refactoring patch that requires offset
> > > >  instead of pointer, to make it harder to misuse but it's
> > > >  a bit intrusive for last minute fixes. So here goes simplified
> > > >  variant, and I'll post refactoring patch for 6.1. later.
> > > > ---
> > > >  hw/acpi/aml-build.c  | 15 +++++++++------
> > > >  hw/i386/acpi-build.c |  8 ++++++--
> > > >  2 files changed, 15 insertions(+), 8 deletions(-)
> > > > 
> > > > diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
> > > > index d33ce8954a..f0035d2b4a 100644
> > > > --- a/hw/acpi/aml-build.c
> > > > +++ b/hw/acpi/aml-build.c
> > > > @@ -1830,6 +1830,7 @@ build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> > > >      int i;
> > > >      unsigned rsdt_entries_offset;
> > > >      AcpiRsdtDescriptorRev1 *rsdt;
> > > > +    int rsdt_start = table_data->len;
> > > >      const unsigned table_data_len = (sizeof(uint32_t) * table_offsets->len);
> > > >      const unsigned rsdt_entry_size = sizeof(rsdt->table_offset_entry[0]);
> > > >      const size_t rsdt_len = sizeof(*rsdt) + table_data_len;
> > > > @@ -1846,7 +1847,8 @@ build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> > > >              ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
> > > >      }
> > > >      build_header(linker, table_data,
> > > > -                 (void *)rsdt, "RSDT", rsdt_len, 1, oem_id, oem_table_id);
> > > > +                 (void *)(table_data->data + rsdt_start),
> > > > +                 "RSDT", rsdt_len, 1, oem_id, oem_table_id);
> > > >  }
> > > >  
> > > >  /* Build xsdt table */
> > > > @@ -1857,6 +1859,7 @@ build_xsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> > > >      int i;
> > > >      unsigned xsdt_entries_offset;
> > > >      AcpiXsdtDescriptorRev2 *xsdt;
> > > > +    int xsdt_start = table_data->len;
> > > >      const unsigned table_data_len = (sizeof(uint64_t) * table_offsets->len);
> > > >      const unsigned xsdt_entry_size = sizeof(xsdt->table_offset_entry[0]);
> > > >      const size_t xsdt_len = sizeof(*xsdt) + table_data_len;
> > > > @@ -1873,7 +1876,8 @@ build_xsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> > > >              ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
> > > >      }
> > > >      build_header(linker, table_data,
> > > > -                 (void *)xsdt, "XSDT", xsdt_len, 1, oem_id, oem_table_id);
> > > > +                 (void *)(table_data->data + xsdt_start),
> > > > +                 "XSDT", xsdt_len, 1, oem_id, oem_table_id);
> > > >  }
> > > >  
> > > >  void build_srat_memory(AcpiSratMemoryAffinity *numamem, uint64_t base,
> > > > @@ -2053,10 +2057,9 @@ void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> > > >      uint64_t control_area_start_address;
> > > >      TPMIf *tpmif = tpm_find();
> > > >      uint32_t start_method;
> > > > -    void *tpm2_ptr;
> > > >  
> > > >      tpm2_start = table_data->len;
> > > > -    tpm2_ptr = acpi_data_push(table_data, sizeof(AcpiTableHeader));
> > > > +    acpi_data_push(table_data, sizeof(AcpiTableHeader));
> > > >  
> > > >      /* Platform Class */
> > > >      build_append_int_noprefix(table_data, TPM2_ACPI_CLASS_CLIENT, 2);
> > > > @@ -2095,8 +2098,8 @@ void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> > > >                                     log_addr_offset, 8,
> > > >                                     ACPI_BUILD_TPMLOG_FILE, 0);
> > > >      build_header(linker, table_data,
> > > > -                 tpm2_ptr, "TPM2", table_data->len - tpm2_start, 4, oem_id,
> > > > -                 oem_table_id);
> > > > +                 (void *)(table_data->data + tpm2_start),
> > > > +                 "TPM2", table_data->len - tpm2_start, 4, oem_id, oem_table_id);
> > > >  }
> > > >  
> > > >  Aml *build_crs(PCIHostState *host, CrsRangeSet *range_set, uint32_t io_offset,
> > > > diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> > > > index de98750aef..daaf8f473e 100644
> > > > --- a/hw/i386/acpi-build.c
> > > > +++ b/hw/i386/acpi-build.c
> > > > @@ -1816,6 +1816,7 @@ build_hpet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
> > > >             const char *oem_table_id)
> > > >  {
> > > >      Acpi20Hpet *hpet;
> > > > +    int hpet_start = table_data->len;
> > > >  
> > > >      hpet = acpi_data_push(table_data, sizeof(*hpet));
> > > >      /* Note timer_block_id value must be kept in sync with value advertised by
> > > > @@ -1824,13 +1825,15 @@ build_hpet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
> > > >      hpet->timer_block_id = cpu_to_le32(0x8086a201);
> > > >      hpet->addr.address = cpu_to_le64(HPET_BASE);
> > > >      build_header(linker, table_data,
> > > > -                 (void *)hpet, "HPET", sizeof(*hpet), 1, oem_id, oem_table_id);
> > > > +                 (void *)(table_data->data + hpet_start),
> > > > +                 "HPET", sizeof(*hpet), 1, oem_id, oem_table_id);
> > > >  }
> > > >  
> > > >  static void
> > > >  build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> > > >                 const char *oem_id, const char *oem_table_id)
> > > >  {
> > > > +    int tcpa_start = table_data->len;
> > > >      Acpi20Tcpa *tcpa = acpi_data_push(table_data, sizeof *tcpa);
> > > >      unsigned log_addr_size = sizeof(tcpa->log_area_start_address);
> > > >      unsigned log_addr_offset =
> > > > @@ -1849,7 +1852,8 @@ build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> > > >          ACPI_BUILD_TPMLOG_FILE, 0);
> > > >  
> > > >      build_header(linker, table_data,
> > > > -                 (void *)tcpa, "TCPA", sizeof(*tcpa), 2, oem_id, oem_table_id);
> > > > +                 (void *)(table_data->data + tcpa_start),
> > > > +                 "TCPA", sizeof(*tcpa), 2, oem_id, oem_table_id);
> > > >  }
> > > >  
> > > >  #define HOLE_640K_START  (640 * KiB)
> > > > -- 
> > > > 2.27.0    
> > >   
> 



^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH for-6.0] x86: acpi: use offset instead of pointer when using build_header()
  2021-04-13 15:21       ` Igor Mammedov
@ 2021-04-13 20:09         ` Michael S. Tsirkin
  0 siblings, 0 replies; 6+ messages in thread
From: Michael S. Tsirkin @ 2021-04-13 20:09 UTC (permalink / raw)
  To: Igor Mammedov; +Cc: peter.maydell, drjones, pbonzini, qemu-devel, zhaoshenglong

On Tue, Apr 13, 2021 at 05:21:10PM +0200, Igor Mammedov wrote:
> On Tue, 13 Apr 2021 09:53:17 -0400
> "Michael S. Tsirkin" <mst@redhat.com> wrote:
> 
> > On Tue, Apr 13, 2021 at 03:18:16PM +0200, Igor Mammedov wrote:
> > > On Tue, 13 Apr 2021 08:14:56 -0400
> > > "Michael S. Tsirkin" <mst@redhat.com> wrote:
> > >   
> > > > On Tue, Apr 13, 2021 at 07:14:00AM -0400, Igor Mammedov wrote:  
> > > > > Do the same as in commit
> > > > >  (4d027afeb3a97 Virt: ACPI: fix qemu assert due to re-assigned table data address)  
> > 
> > Format:
> > 
> > commit 4d027afeb3a97 ("Virt: ACPI: fix qemu assert due to re-assigned table data address")
> > 
> > > > > for remaining tables that happen to use saved at
> > > > > the beginning pointer to build header to avoid assert
> > > > > when table_data is relocated due to implicit re-size.
> > > > > 
> > > > > Reported-in: https://bugs.launchpad.net/bugs/1923497    
> > > > 
> > > > Doesn't this fix the bug? If so -
> > > > Isn't this Fixes: ?  
> > > that's buried in history
> > > 
> > > Fixes: 243bdb79fb0b2ed hw/arm/virt-acpi-build: Generate RSDT table
> > > Fixes: cb51ac2ffe3649e hw/arm/virt: generate 64-bit addressable ACPI objects
> > > Fixes: 4338416064303aa acpi: Move build_tpm2() in the generic part
> > > Fixes: 72c194f7e75cb64 i386: ACPI table generation code from seabios
> > > Fixes: 711b20b479aa96e Add ACPI tables for TPM  
> > 
> > 
> > I just mean:
> > 
> >     Buglink: https://bugs.launchpad.net/qemu/+bug/1921138
> > 
> > as opposed to Reported.
> > 
> > Also do we CC stable for this?
> Given it's reported on 5.1, it is a good idea to cc stable.
> 
> Shall I repost with fixed: "Fixes:..."?


Yes. If you can copy problem description from launchpad/ARM
commit into commit log, that's also a good idea.

> > 
> > >    
> > > > > Signed-off-by: Igor Mammedov <imammedo@redhat.com>  
> > 
> > 
> > patch itself ok:
> > 
> > Acked-by: Michael S. Tsirkin <mst@redhat.com>
> > 
> > > > > ---
> > > > > PS:
> > > > >  I have build_header() refactoring patch that requires offset
> > > > >  instead of pointer, to make it harder to misuse but it's
> > > > >  a bit intrusive for last minute fixes. So here goes simplified
> > > > >  variant, and I'll post refactoring patch for 6.1. later.
> > > > > ---
> > > > >  hw/acpi/aml-build.c  | 15 +++++++++------
> > > > >  hw/i386/acpi-build.c |  8 ++++++--
> > > > >  2 files changed, 15 insertions(+), 8 deletions(-)
> > > > > 
> > > > > diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
> > > > > index d33ce8954a..f0035d2b4a 100644
> > > > > --- a/hw/acpi/aml-build.c
> > > > > +++ b/hw/acpi/aml-build.c
> > > > > @@ -1830,6 +1830,7 @@ build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> > > > >      int i;
> > > > >      unsigned rsdt_entries_offset;
> > > > >      AcpiRsdtDescriptorRev1 *rsdt;
> > > > > +    int rsdt_start = table_data->len;
> > > > >      const unsigned table_data_len = (sizeof(uint32_t) * table_offsets->len);
> > > > >      const unsigned rsdt_entry_size = sizeof(rsdt->table_offset_entry[0]);
> > > > >      const size_t rsdt_len = sizeof(*rsdt) + table_data_len;
> > > > > @@ -1846,7 +1847,8 @@ build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> > > > >              ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
> > > > >      }
> > > > >      build_header(linker, table_data,
> > > > > -                 (void *)rsdt, "RSDT", rsdt_len, 1, oem_id, oem_table_id);
> > > > > +                 (void *)(table_data->data + rsdt_start),
> > > > > +                 "RSDT", rsdt_len, 1, oem_id, oem_table_id);
> > > > >  }
> > > > >  
> > > > >  /* Build xsdt table */
> > > > > @@ -1857,6 +1859,7 @@ build_xsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> > > > >      int i;
> > > > >      unsigned xsdt_entries_offset;
> > > > >      AcpiXsdtDescriptorRev2 *xsdt;
> > > > > +    int xsdt_start = table_data->len;
> > > > >      const unsigned table_data_len = (sizeof(uint64_t) * table_offsets->len);
> > > > >      const unsigned xsdt_entry_size = sizeof(xsdt->table_offset_entry[0]);
> > > > >      const size_t xsdt_len = sizeof(*xsdt) + table_data_len;
> > > > > @@ -1873,7 +1876,8 @@ build_xsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
> > > > >              ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
> > > > >      }
> > > > >      build_header(linker, table_data,
> > > > > -                 (void *)xsdt, "XSDT", xsdt_len, 1, oem_id, oem_table_id);
> > > > > +                 (void *)(table_data->data + xsdt_start),
> > > > > +                 "XSDT", xsdt_len, 1, oem_id, oem_table_id);
> > > > >  }
> > > > >  
> > > > >  void build_srat_memory(AcpiSratMemoryAffinity *numamem, uint64_t base,
> > > > > @@ -2053,10 +2057,9 @@ void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> > > > >      uint64_t control_area_start_address;
> > > > >      TPMIf *tpmif = tpm_find();
> > > > >      uint32_t start_method;
> > > > > -    void *tpm2_ptr;
> > > > >  
> > > > >      tpm2_start = table_data->len;
> > > > > -    tpm2_ptr = acpi_data_push(table_data, sizeof(AcpiTableHeader));
> > > > > +    acpi_data_push(table_data, sizeof(AcpiTableHeader));
> > > > >  
> > > > >      /* Platform Class */
> > > > >      build_append_int_noprefix(table_data, TPM2_ACPI_CLASS_CLIENT, 2);
> > > > > @@ -2095,8 +2098,8 @@ void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> > > > >                                     log_addr_offset, 8,
> > > > >                                     ACPI_BUILD_TPMLOG_FILE, 0);
> > > > >      build_header(linker, table_data,
> > > > > -                 tpm2_ptr, "TPM2", table_data->len - tpm2_start, 4, oem_id,
> > > > > -                 oem_table_id);
> > > > > +                 (void *)(table_data->data + tpm2_start),
> > > > > +                 "TPM2", table_data->len - tpm2_start, 4, oem_id, oem_table_id);
> > > > >  }
> > > > >  
> > > > >  Aml *build_crs(PCIHostState *host, CrsRangeSet *range_set, uint32_t io_offset,
> > > > > diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
> > > > > index de98750aef..daaf8f473e 100644
> > > > > --- a/hw/i386/acpi-build.c
> > > > > +++ b/hw/i386/acpi-build.c
> > > > > @@ -1816,6 +1816,7 @@ build_hpet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
> > > > >             const char *oem_table_id)
> > > > >  {
> > > > >      Acpi20Hpet *hpet;
> > > > > +    int hpet_start = table_data->len;
> > > > >  
> > > > >      hpet = acpi_data_push(table_data, sizeof(*hpet));
> > > > >      /* Note timer_block_id value must be kept in sync with value advertised by
> > > > > @@ -1824,13 +1825,15 @@ build_hpet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
> > > > >      hpet->timer_block_id = cpu_to_le32(0x8086a201);
> > > > >      hpet->addr.address = cpu_to_le64(HPET_BASE);
> > > > >      build_header(linker, table_data,
> > > > > -                 (void *)hpet, "HPET", sizeof(*hpet), 1, oem_id, oem_table_id);
> > > > > +                 (void *)(table_data->data + hpet_start),
> > > > > +                 "HPET", sizeof(*hpet), 1, oem_id, oem_table_id);
> > > > >  }
> > > > >  
> > > > >  static void
> > > > >  build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> > > > >                 const char *oem_id, const char *oem_table_id)
> > > > >  {
> > > > > +    int tcpa_start = table_data->len;
> > > > >      Acpi20Tcpa *tcpa = acpi_data_push(table_data, sizeof *tcpa);
> > > > >      unsigned log_addr_size = sizeof(tcpa->log_area_start_address);
> > > > >      unsigned log_addr_offset =
> > > > > @@ -1849,7 +1852,8 @@ build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
> > > > >          ACPI_BUILD_TPMLOG_FILE, 0);
> > > > >  
> > > > >      build_header(linker, table_data,
> > > > > -                 (void *)tcpa, "TCPA", sizeof(*tcpa), 2, oem_id, oem_table_id);
> > > > > +                 (void *)(table_data->data + tcpa_start),
> > > > > +                 "TCPA", sizeof(*tcpa), 2, oem_id, oem_table_id);
> > > > >  }
> > > > >  
> > > > >  #define HOLE_640K_START  (640 * KiB)
> > > > > -- 
> > > > > 2.27.0    
> > > >   
> > 



^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2021-04-13 20:10 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-13 11:14 [PATCH for-6.0] x86: acpi: use offset instead of pointer when using build_header() Igor Mammedov
2021-04-13 12:14 ` Michael S. Tsirkin
2021-04-13 13:18   ` Igor Mammedov
2021-04-13 13:53     ` Michael S. Tsirkin
2021-04-13 15:21       ` Igor Mammedov
2021-04-13 20:09         ` Michael S. Tsirkin

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