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envelope-from=joao.m.martins@oracle.com; helo=mx0a-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 7/11/22 13:47, Igor Mammedov wrote: > On Thu, 7 Jul 2022 16:18:43 +0100 > Joao Martins wrote: > >> On 7/7/22 14:00, Igor Mammedov wrote: >>> On Fri, 1 Jul 2022 17:10:10 +0100 >>> Joao Martins wrote: >>> >>>> Factor out the calculation of the base address of the MR. It will be >>>> used later on for the cxl range end counterpart calculation and as >>>> well in pc_memory_init() CXL mr initialization, thus avoiding >>>> duplication. >>>> >>>> Cc: Jonathan Cameron >>>> Signed-off-by: Joao Martins >>> >>> needs to be rebased on top of >>> >>> >>> [PATCH 2/3] hw/i386/pc: Always place CXL Memory Regions after device_memory >>> >> Is Michael merging these or should I just respin v7 with the assumption >> that these patches are there? > > I'd do the later (just mention dependency in cover letter) > Yeap -- Will do. >> I can't see anything in his tree yet. >> >>>> --- >>>> hw/i386/pc.c | 28 +++++++++++++++++++--------- >>>> 1 file changed, 19 insertions(+), 9 deletions(-) >>>> >>>> diff --git a/hw/i386/pc.c b/hw/i386/pc.c >>>> index 0abbf81841a9..8655cc3b8894 100644 >>>> --- a/hw/i386/pc.c >>>> +++ b/hw/i386/pc.c >>>> @@ -825,6 +825,24 @@ static hwaddr pc_above_4g_end(PCMachineState *pcms) >>>> return x86ms->above_4g_mem_start + x86ms->above_4g_mem_size; >>>> } >>>> >>>> +static uint64_t pc_get_cxl_range_start(PCMachineState *pcms) >>>> +{ >>>> + PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); >>>> + MachineState *machine = MACHINE(pcms); >>>> + hwaddr cxl_base; >>>> + >>>> + if (pcmc->has_reserved_memory && machine->device_memory->base) { >>>> + cxl_base = machine->device_memory->base; >>>> + if (!pcmc->broken_reserved_end) { >>>> + cxl_base += memory_region_size(&machine->device_memory->mr); >>>> + } >>>> + } else { >>>> + cxl_base = pc_above_4g_end(pcms); >>>> + } >>>> + >>>> + return cxl_base; >>>> +} >>>> + >>>> static uint64_t pc_get_cxl_range_end(PCMachineState *pcms) >>>> { >>>> uint64_t start = 0; >>>> @@ -946,15 +964,7 @@ void pc_memory_init(PCMachineState *pcms, >>>> MemoryRegion *mr = &pcms->cxl_devices_state.host_mr; >>>> hwaddr cxl_size = MiB; >>>> >>>> - if (pcmc->has_reserved_memory && machine->device_memory->base) { >>>> - cxl_base = machine->device_memory->base; >>>> - if (!pcmc->broken_reserved_end) { >>>> - cxl_base += memory_region_size(&machine->device_memory->mr); >>>> - } >>>> - } else { >>>> - cxl_base = pc_above_4g_end(pcms); >>>> - } >>>> - >>>> + cxl_base = pc_get_cxl_range_start(pcms); >>>> e820_add_entry(cxl_base, cxl_size, E820_RESERVED); >>>> memory_region_init(mr, OBJECT(machine), "cxl_host_reg", cxl_size); >>>> memory_region_add_subregion(system_memory, cxl_base, mr); >>> >> >