From: Li Chen
The ACPI SPCR (Serial Port Console Redirection) table allows firmware
to specify a preferred serial console device to the operating system.
On ARM64 systems, Linux by default respects this table: even if the
kernel command line does not include a hardware serial console (e.g
From: Li Chen
Add ACPI SPCR table test case for RISC-V when SPCR was off.
Signed-off-by: Li Chen
---
tests/qtest/bios-tables-test.c | 22 ++
1 file changed, 22 insertions(+)
diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c
index d2a1aa7fb3
- Add Reviewed-by from Bibo Mao for the first patch
Li Chen (3):
acpi: Add machine option to disable SPCR table as suggested by Philippe
Mathieu-Daudé
tests/qtest/bios-tables-test: Add test for disabling SPCR on AArch64
tests/qtest/bios-tables-test: Add test for disabling SPCR on RISC-V
h
From: Li Chen
The ACPI SPCR (Serial Port Console Redirection) table allows firmware
to specify a preferred serial console device to the operating system.
On ARM64 systems, Linux by default respects this table: even if the
kernel command line does not include a hardware serial console (e.g
Hi Philippe,
Thanks for your review!
On Tue, 22 Apr 2025 16:00:19 +0800 Philippe Mathieu-Daudé
wrote ---
> Hi,
>
> On 22/4/25 09:47, Li Chen wrote:
> > From: Li Chen
> >
> > The ACPI SPCR (Serial Port Console Redirection) table allows firmware
From: Li Chen
Add ACPI SPCR table test case for ARM when SPCR was off.
Signed-off-by: Li Chen
---
tests/qtest/bios-tables-test.c | 20
1 file changed, 20 insertions(+)
diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c
index 0a333ec435
Hi Philippe Mathieu-Daudé,
Thanks for your review!
On Tue, 22 Apr 2025 21:18:46 +0800 Philippe Mathieu-Daudé
wrote ---
> Hi,
>
> On 22/4/25 14:05, Li Chen wrote:
> > diff --git a/include/hw/boards.h b/include/hw/boards.h
> > index f22b2e7fc7..cdf2791a50 1006
Hi Gavin,
On Wed, 23 Apr 2025 08:11:24 +0800 Gavin Shan wrote
---
> On 4/22/25 10:05 PM, Li Chen wrote:
> > From: Li Chen
> >
> > The ACPI SPCR (Serial Port Console Redirection) table allows firmware
> > to specify a preferred serial console dev
Hi Bibo,
On Wed, 23 Apr 2025 16:49:09 +0800 bibo mao wrote
---
>
>
> On 2025/4/23 下午4:36, Li Chen wrote:
> > Hi Bibo,
> >
> > On Wed, 23 Apr 2025 14:27:36 +0800 bibo mao
> > wrote ---
> > >
> > >
> >
Hi Bibo,
On Wed, 23 Apr 2025 14:27:36 +0800 bibo mao wrote
---
>
>
> On 2025/4/22 下午8:03, Li Chen wrote:
> > This series introduces a new machine option, spcr=on|off, allowing users
> > to disable the ACPI SPCR (Serial Port Console Redirection) table.
&g
From: Li Chen
(REPOST because the previous post failed to send to
qemu-devel/qemu-riscv/qemu-arm,
see
https://lore.kernel.org/qemu-devel/1971648603b.dce1f5d22901195.6702025346547333607@linux.beauty/T/#u)
This series introduces a new machine option, spcr=on|off, allowing users
to disable the
From: Li Chen
Add ACPI SPCR table test case for RISC-V when SPCR was off.
Signed-off-by: Li Chen
Reviewed-by: Sunil V L
---
Notes:
Changes since v3: Add Reviewed-by from Sunil V L
tests/qtest/bios-tables-test.c | 22 ++
1 file changed, 22 insertions(+)
diff --git
From: Li Chen
The ACPI SPCR (Serial Port Console Redirection) table allows firmware
to specify a preferred serial console device to the operating system.
On ARM64 systems, Linux by default respects this table: even if the
kernel command line does not include a hardware serial console (e.g
From: Li Chen
Add ACPI SPCR table test case for ARM when SPCR was off.
Signed-off-by: Li Chen
---
tests/qtest/bios-tables-test.c | 20
1 file changed, 20 insertions(+)
diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c
index 0a333ec435
Hi Thomos,
On Wed, 28 May 2025 17:52:50 +0800 Thomas Huth wrote
---
> On 28/05/2025 11.45, Li Chen wrote:
> > Hi,
> >
> > My emails to the qemu-devel, qemu-riscv, and qemu-arm mailing lists
> > regarding the
> > "[PATCH v4 0/4] acpi: Ad
From: Li Chen
The virt machines always instantiate a PL011/16550 at UART0 and
describe it in ACPI (DSDT device node plus optional SPCR table). When
the command line contains “-serial none” there is no backend attached to
that UART, yet the guest still discovers it via ACPI and may try to use
it
Hi Philippe,
On Mon, 26 May 2025 18:07:16 +0800 Philippe Mathieu-Daudé
wrote ---
> Hi Li,
>
> On 15/5/25 14:41, Li Chen wrote:
> > From: Li Chen
> >
> > The ACPI SPCR (Serial Port Console Redirection) table allows firmware
> > to specify a p
This series failed to send to qemu-devel/qemu-arm/qemu-riscv. I have requested
assistance via this thread:
https://lore.kernel.org/qemu-devel/1971648603b.dce1f5d22901195.6702025346547333607@linux.beauty/T/#u
On Wed, 28 May 2025 16:09:36 +0800 Li Chen wrote ---
> From: Li C
te: 28 May 2025 08:11:19 GMT
Diagnostic-Code: Message headers fail syntax check
Remote-MTA: dns; eggs.gnu.org
(... qemu-riscv/qemu-arm ...)
```
And below is the email header:
```
Received: by mx.zohomail.com with SMTPS id 1748419823397138.51964085412385;
Wed, 28 May 2025 01:10:23 -0700 (PDT
thieu-Daudé.
- Add Reviewed-by from Gavin Shan for the first patch and
fix style issue.
Changes since v1:
- Add bios-tables-test for RISC-V and ARM as suggested by
- Add Acked-by from Michael S. Tsirkin for the first patch
- Add Reviewed-by from Bibo Mao for the first patch
Li Chen (4):
acpi
From: Li Chen
The ACPI SPCR (Serial Port Console Redirection) table allows firmware
to specify a preferred serial console device to the operating system.
On ARM64 systems, Linux by default respects this table: even if the
kernel command line does not include a hardware serial console (e.g
From: Li Chen
Add ACPI SPCR table test case for ARM when SPCR was off.
Signed-off-by: Li Chen
---
tests/qtest/bios-tables-test.c | 20
1 file changed, 20 insertions(+)
diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c
index 0a333ec435
From: Li Chen
Add ACPI SPCR table test case for RISC-V when SPCR was off.
Signed-off-by: Li Chen
---
tests/qtest/bios-tables-test.c | 22 ++
1 file changed, 22 insertions(+)
diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c
index d2a1aa7fb3
From: Li Chen
The virt machines always instantiate a PL011/16550 at UART0 and
describe it in ACPI (DSDT device node plus optional SPCR table). When
the command line contains “-serial none” there is no backend attached to
that UART, yet the guest still discovers it via ACPI and may try to use
it
Gentle ping incase of forgotten.
On Wed, 28 May 2025 18:53:34 +0800 Li Chen wrote ---
> From: Li Chen
>
> (REPOST because the previous post failed to send to
> qemu-devel/qemu-riscv/qemu-arm,
> see
> https://lore.ker
Hi Michael,
On Fri, 30 May 2025 20:10:52 +0800 Michael S. Tsirkin
wrote ---
> On Wed, May 28, 2025 at 06:53:34PM +0800, Li Chen wrote:
> > From: Li Chen
> >
> > (REPOST because the previous post failed to send to
> > qemu-devel/qemu-riscv/qemu
28, 2025 at 06:53:38PM +0800, Li Chen wrote:
> > From: Li Chen
> >
> > The virt machines always instantiate a PL011/16550 at UART0 and
> > describe it in ACPI (DSDT device node plus optional SPCR table). When
> > the command line contains “-serial none” there is
Hi Michael,
On Wed, 16 Jul 2025 19:42:42 +0800 Michael S. Tsirkin
wrote ---
> On Wed, Jul 16, 2025 at 07:41:11PM +0800, Li Chen wrote:
> > Hi Michael,
> >
> > Thanks for your kind review! All issues below have been fixed in v5:
> > https:/
From: Li Chen
This series introduces a new machine option, spcr=on|off, allowing users
to disable the ACPI SPCR (Serial Port Console Redirection) table.
By default, SPCR is enabled. Disabling it can help ensure that the guest's
console behavior is determined solely by kernel command
From: Li Chen
The ACPI SPCR (Serial Port Console Redirection) table allows firmware
to specify a preferred serial console device to the operating system.
On ARM64 systems, Linux by default respects this table: even if the
kernel command line does not include a hardware serial console (e.g
From: Li Chen
Add ACPI SPCR table test case for RISC-V when SPCR was off.
Signed-off-by: Li Chen
Reviewed-by: Sunil V L
---
Notes:
Changes since v3: Add Reviewed-by from Sunil V L
tests/qtest/bios-tables-test.c | 22 ++
1 file changed, 22 insertions(+)
diff --git
From: Li Chen
Add ACPI SPCR table test case for ARM when SPCR was off.
Signed-off-by: Li Chen
---
tests/qtest/bios-tables-test.c | 20
1 file changed, 20 insertions(+)
diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c
index 4dbc07ec5e
From: Li Chen
The virt machines always instantiate a PL011/16550 at UART0 and
describe it in ACPI (DSDT device node plus optional SPCR table). When
the command line contains “-serial none” there is no backend attached to
that UART, yet the guest still discovers it via ACPI and may try to use
it
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