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Re: [PATCH v3 0/4] Improve default object property_add uint helpers
From: |
Stefan Hajnoczi |
Subject: |
Re: [PATCH v3 0/4] Improve default object property_add uint helpers |
Date: |
Mon, 2 Dec 2019 15:00:01 +0000 |
User-agent: |
Mutt/1.12.1 (2019-06-15) |
On Fri, Nov 29, 2019 at 05:46:47PM +0000, Felipe Franciosi wrote:
> This improves the family of object_property_add_uintXX_ptr helpers by enabling
> a default getter/setter only when desired. To prevent an API behavioural
> change
> (from clients that already used these helpers and did not want a setter), we
> add a OBJ_PROP_FLAG_READ flag that allow clients to only have a getter. Patch
> 1
> enhances the API and modify current users.
>
> While modifying the clients of the API, a couple of improvement opportunities
> were observed in ich9. These were added in separate patches (2 and 3).
>
> Patch 3 cleans up a lot of existing code by moving various objects to the
> enhanced API. Previously, those objects had their own getters/setters that
> only
> updated the values without further checks. Some of them actually lacked a
> check
> for setting overflows, which could have resulted in undesired values being
> set.
> The new default setters include a check for that, not updating the values in
> case of errors (and propagating them). If they did not provide an error
> pointer, then that behaviour was maintained.
>
>
> Felipe Franciosi (4):
> qom/object: enable setter for uint types
> ich9: fix getter type for sci_int property
> ich9: Simplify ich9_lpc_initfn
> qom/object: Use common get/set uint helpers
>
> hw/acpi/ich9.c | 99 ++------------------
> hw/acpi/pcihp.c | 7 +-
> hw/acpi/piix4.c | 12 +--
> hw/isa/lpc_ich9.c | 27 ++----
> hw/misc/edu.c | 13 +--
> hw/pci-host/q35.c | 14 +--
> hw/ppc/spapr.c | 18 +---
> hw/ppc/spapr_drc.c | 3 +-
> hw/vfio/pci-quirks.c | 20 ++--
> include/qom/object.h | 44 +++++++--
> memory.c | 15 +--
> qom/object.c | 216 ++++++++++++++++++++++++++++++++++++++-----
> target/arm/cpu.c | 22 +----
> target/i386/sev.c | 106 ++-------------------
> ui/console.c | 4 +-
> 15 files changed, 288 insertions(+), 332 deletions(-)
>
> --
> 2.20.1
>
> Changelog:
> v1->v2:
> - Update sci_int directly instead of using stack variable
> - Defining an enhanced ObjectPropertyFlags instead of just 'readonly'
> - Erroring out directly (instead of using gotos) on default setters
> - Retaining lack of errp passing when it wasn't there
> v2->v3:
> - Rename flags _RD to _READ and _WR to _WRITE
> - Add a convenience _READWRITE flag
> - Drop the usage of UL in the bit flag definitions
Modulo the review comments that have already been raised:
Reviewed-by: Stefan Hajnoczi <address@hidden>
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