diff mbox series

[v6,08/16] acpi/ghes: don't check if physical_address is not zero

Message ID 95c0fa3fc2969daf3b6bc1f007733f11b715a465.1733561462.git.mchehab+huawei@kernel.org (mailing list archive)
State New
Headers show
Series Prepare GHES driver to support error injection | expand

Commit Message

Mauro Carvalho Chehab Dec. 7, 2024, 8:54 a.m. UTC
The 'physical_address' value is a faulty page. As such, 0 is
as valid as any other value.

Suggested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 hw/acpi/ghes.c | 4 ----
 1 file changed, 4 deletions(-)

Comments

Jonathan Cameron Dec. 9, 2024, 11:36 a.m. UTC | #1
On Sat,  7 Dec 2024 09:54:14 +0100
Mauro Carvalho Chehab <mchehab+huawei@kernel.org> wrote:

> The 'physical_address' value is a faulty page. As such, 0 is
> as valid as any other value.
Still not sure on what faulty pages are :)

Given I tagged previous (after you'd sent this)
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

> 
> Suggested-by: Igor Mammedov <imammedo@redhat.com>
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> ---
>  hw/acpi/ghes.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
> index edc74c38bf8a..a3dffd78b012 100644
> --- a/hw/acpi/ghes.c
> +++ b/hw/acpi/ghes.c
> @@ -400,10 +400,6 @@ int acpi_ghes_record_errors(uint16_t source_id, uint64_t physical_address)
>  
>      start_addr = le64_to_cpu(ags->ghes_addr_le);
>  
> -    if (!physical_address) {
> -        return -1;
> -    }
> -
>      start_addr += source_id * sizeof(uint64_t);
>  
>      cpu_physical_memory_read(start_addr, &error_block_addr,
Mauro Carvalho Chehab Dec. 9, 2024, 12:56 p.m. UTC | #2
Em Mon, 9 Dec 2024 11:36:40 +0000
Jonathan Cameron <Jonathan.Cameron@huawei.com> escreveu:

> On Sat,  7 Dec 2024 09:54:14 +0100
> Mauro Carvalho Chehab <mchehab+huawei@kernel.org> wrote:
> 
> > The 'physical_address' value is a faulty page. As such, 0 is
> > as valid as any other value.  
> Still not sure on what faulty pages are :)
> 
> Given I tagged previous (after you'd sent this)
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

It seems I forgot adding this tag, from Igor's review, as per:
	https://lore.kernel.org/qemu-devel/20241204141246.37a7cb9d@imammedo.users.ipa.redhat.com/
This patch was reviwed by Igor already, so:

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

> 
> > 
> > Suggested-by: Igor Mammedov <imammedo@redhat.com>
> > Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> > ---
> >  hw/acpi/ghes.c | 4 ----
> >  1 file changed, 4 deletions(-)
> > 
> > diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
> > index edc74c38bf8a..a3dffd78b012 100644
> > --- a/hw/acpi/ghes.c
> > +++ b/hw/acpi/ghes.c
> > @@ -400,10 +400,6 @@ int acpi_ghes_record_errors(uint16_t source_id, uint64_t physical_address)
> >  
> >      start_addr = le64_to_cpu(ags->ghes_addr_le);
> >  
> > -    if (!physical_address) {
> > -        return -1;
> > -    }
> > -
> >      start_addr += source_id * sizeof(uint64_t);
> >  
> >      cpu_physical_memory_read(start_addr, &error_block_addr,  
> 



Thanks,
Mauro
Igor Mammedov Dec. 9, 2024, 1:21 p.m. UTC | #3
On Mon, 9 Dec 2024 11:36:40 +0000
Jonathan Cameron <Jonathan.Cameron@huawei.com> wrote:

> On Sat,  7 Dec 2024 09:54:14 +0100
> Mauro Carvalho Chehab <mchehab+huawei@kernel.org> wrote:
> 
> > The 'physical_address' value is a faulty page. As such, 0 is
> > as valid as any other value.  
> Still not sure on what faulty pages are :)

s/page/address/ probably would make it a bit more clear

> 
> Given I tagged previous (after you'd sent this)
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> 
> > 
> > Suggested-by: Igor Mammedov <imammedo@redhat.com>
> > Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> > ---
> >  hw/acpi/ghes.c | 4 ----
> >  1 file changed, 4 deletions(-)
> > 
> > diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
> > index edc74c38bf8a..a3dffd78b012 100644
> > --- a/hw/acpi/ghes.c
> > +++ b/hw/acpi/ghes.c
> > @@ -400,10 +400,6 @@ int acpi_ghes_record_errors(uint16_t source_id, uint64_t physical_address)
> >  
> >      start_addr = le64_to_cpu(ags->ghes_addr_le);
> >  
> > -    if (!physical_address) {
> > -        return -1;
> > -    }
> > -
> >      start_addr += source_id * sizeof(uint64_t);
> >  
> >      cpu_physical_memory_read(start_addr, &error_block_addr,  
>
diff mbox series

Patch

diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index edc74c38bf8a..a3dffd78b012 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -400,10 +400,6 @@  int acpi_ghes_record_errors(uint16_t source_id, uint64_t physical_address)
 
     start_addr = le64_to_cpu(ags->ghes_addr_le);
 
-    if (!physical_address) {
-        return -1;
-    }
-
     start_addr += source_id * sizeof(uint64_t);
 
     cpu_physical_memory_read(start_addr, &error_block_addr,